Home / 926,145.30-1,388,343.15-547,356.90

Finding the Fourth Proportional to 926,145.30, 1,388,343.15 and 547,356.90

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Solution

The fourth proportional to 926,145.30, 1,388,343.15 and 547,356.90 is: 820,518.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    926,145.30 : 1,388,343.15 = 547,356.90 : x
  2. Step 2: Convert to fraction form
    926,145.30/1,388,343.15 = 547,356.90/x
  3. Step 3: Cross multiply
    926,145.30x = 1,388,343.15 × 547,356.90
  4. Step 4: Simplify right side
    926,145.30x = 759,919,202,720.24
  5. Step 5: Solve for x
    x = 759,919,202,720.24/926,145.30
  6. Step 6: Final answer
    x = 820,518.34

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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.