Home / 1,005,686.76-1,508,526.18-406,640.64

Finding the Fourth Proportional to 1,005,686.76, 1,508,526.18 and 406,640.64

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Solution

The fourth proportional to 1,005,686.76, 1,508,526.18 and 406,640.64 is: 609,959.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,005,686.76 : 1,508,526.18 = 406,640.64 : x
  2. Step 2: Convert to fraction form
    1,005,686.76/1,508,526.18 = 406,640.64/x
  3. Step 3: Cross multiply
    1,005,686.76x = 1,508,526.18 × 406,640.64
  4. Step 4: Simplify right side
    1,005,686.76x = 613,428,051,291.96
  5. Step 5: Solve for x
    x = 613,428,051,291.96/1,005,686.76
  6. Step 6: Final answer
    x = 609,959.36

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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.