Home / 726,776.20-1,090,164.30-569,139.40

Finding the Fourth Proportional to 726,776.20, 1,090,164.30 and 569,139.40

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Solution

The fourth proportional to 726,776.20, 1,090,164.30 and 569,139.40 is: 853,709.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,776.20 : 1,090,164.30 = 569,139.40 : x
  2. Step 2: Convert to fraction form
    726,776.20/1,090,164.30 = 569,139.40/x
  3. Step 3: Cross multiply
    726,776.20x = 1,090,164.30 × 569,139.40
  4. Step 4: Simplify right side
    726,776.20x = 620,455,455,603.42
  5. Step 5: Solve for x
    x = 620,455,455,603.42/726,776.20
  6. Step 6: Final answer
    x = 853,709.10

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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.