Home / 726,777.20-1,090,165.80-569,140.40

Finding the Fourth Proportional to 726,777.20, 1,090,165.80 and 569,140.40

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Solution

The fourth proportional to 726,777.20, 1,090,165.80 and 569,140.40 is: 853,710.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,777.20 : 1,090,165.80 = 569,140.40 : x
  2. Step 2: Convert to fraction form
    726,777.20/1,090,165.80 = 569,140.40/x
  3. Step 3: Cross multiply
    726,777.20x = 1,090,165.80 × 569,140.40
  4. Step 4: Simplify right side
    726,777.20x = 620,457,399,478.32
  5. Step 5: Solve for x
    x = 620,457,399,478.32/726,777.20
  6. Step 6: Final answer
    x = 853,710.60

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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.