Home / 1,349,078.88-1,861,655.76-745,428

Finding the Fourth Proportional to 1,349,078.88, 1,861,655.76 and 745,428

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Solution

The fourth proportional to 1,349,078.88, 1,861,655.76 and 745,428 is: 1,028,650.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,349,078.88 : 1,861,655.76 = 745,428 : x
  2. Step 2: Convert to fraction form
    1,349,078.88/1,861,655.76 = 745,428/x
  3. Step 3: Cross multiply
    1,349,078.88x = 1,861,655.76 × 745,428
  4. Step 4: Simplify right side
    1,349,078.88x = 1,387,730,329,865.28
  5. Step 5: Solve for x
    x = 1,387,730,329,865.28/1,349,078.88
  6. Step 6: Final answer
    x = 1,028,650.25

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.