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Finding the Fourth Proportional to 564,802.80, 847,204.20 and 423,085.20

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Solution

The fourth proportional to 564,802.80, 847,204.20 and 423,085.20 is: 634,627.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    564,802.80 : 847,204.20 = 423,085.20 : x
  2. Step 2: Convert to fraction form
    564,802.80/847,204.20 = 423,085.20/x
  3. Step 3: Cross multiply
    564,802.80x = 847,204.20 × 423,085.20
  4. Step 4: Simplify right side
    564,802.80x = 358,439,558,397.84
  5. Step 5: Solve for x
    x = 358,439,558,397.84/564,802.80
  6. Step 6: Final answer
    x = 634,627.80

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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.