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Finding the Fourth Proportional to 557,758.80, 836,638.20 and 507,895.20

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Solution

The fourth proportional to 557,758.80, 836,638.20 and 507,895.20 is: 761,842.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,758.80 : 836,638.20 = 507,895.20 : x
  2. Step 2: Convert to fraction form
    557,758.80/836,638.20 = 507,895.20/x
  3. Step 3: Cross multiply
    557,758.80x = 836,638.20 × 507,895.20
  4. Step 4: Simplify right side
    557,758.80x = 424,924,525,916.64
  5. Step 5: Solve for x
    x = 424,924,525,916.64/557,758.80
  6. Step 6: Final answer
    x = 761,842.80

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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.