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Finding the Fourth Proportional to 557,753.80, 836,630.70 and 507,890.20

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Solution

The fourth proportional to 557,753.80, 836,630.70 and 507,890.20 is: 761,835.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,753.80 : 836,630.70 = 507,890.20 : x
  2. Step 2: Convert to fraction form
    557,753.80/836,630.70 = 507,890.20/x
  3. Step 3: Cross multiply
    557,753.80x = 836,630.70 × 507,890.20
  4. Step 4: Simplify right side
    557,753.80x = 424,916,533,549.14
  5. Step 5: Solve for x
    x = 424,916,533,549.14/557,753.80
  6. Step 6: Final answer
    x = 761,835.30

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.