Home / 510,581.12-765,985.47-155,622.82

Finding the Fourth Proportional to 510,581.12, 765,985.47 and 155,622.82

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Solution

The fourth proportional to 510,581.12, 765,985.47 and 155,622.82 is: 233,468.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    510,581.12 : 765,985.47 = 155,622.82 : x
  2. Step 2: Convert to fraction form
    510,581.12/765,985.47 = 155,622.82/x
  3. Step 3: Cross multiply
    510,581.12x = 765,985.47 × 155,622.82
  4. Step 4: Simplify right side
    510,581.12x = 119,204,818,952.32
  5. Step 5: Solve for x
    x = 119,204,818,952.32/510,581.12
  6. Step 6: Final answer
    x = 233,468.91

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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.