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Finding the Fourth Proportional to 531,195.40, 745,539.80 and 531,195.40

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Solution

The fourth proportional to 531,195.40, 745,539.80 and 531,195.40 is: 745,539.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,195.40 : 745,539.80 = 531,195.40 : x
  2. Step 2: Convert to fraction form
    531,195.40/745,539.80 = 531,195.40/x
  3. Step 3: Cross multiply
    531,195.40x = 745,539.80 × 531,195.40
  4. Step 4: Simplify right side
    531,195.40x = 396,027,312,276.92
  5. Step 5: Solve for x
    x = 396,027,312,276.92/531,195.40
  6. Step 6: Final answer
    x = 745,539.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.