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Finding the Fourth Proportional to 537,920.80, 740,728.40 and 525,985.85

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Solution

The fourth proportional to 537,920.80, 740,728.40 and 525,985.85 is: 724,293.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    537,920.80 : 740,728.40 = 525,985.85 : x
  2. Step 2: Convert to fraction form
    537,920.80/740,728.40 = 525,985.85/x
  3. Step 3: Cross multiply
    537,920.80x = 740,728.40 × 525,985.85
  4. Step 4: Simplify right side
    537,920.80x = 389,612,656,315.03
  5. Step 5: Solve for x
    x = 389,612,656,315.03/537,920.80
  6. Step 6: Final answer
    x = 724,293.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.