Home / 710,070.93-979,905.68-387,790.52

Finding the Fourth Proportional to 710,070.93, 979,905.68 and 387,790.52

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Solution

The fourth proportional to 710,070.93, 979,905.68 and 387,790.52 is: 535,155.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    710,070.93 : 979,905.68 = 387,790.52 : x
  2. Step 2: Convert to fraction form
    710,070.93/979,905.68 = 387,790.52/x
  3. Step 3: Cross multiply
    710,070.93x = 979,905.68 × 387,790.52
  4. Step 4: Simplify right side
    710,070.93x = 379,998,126,359.67
  5. Step 5: Solve for x
    x = 379,998,126,359.67/710,070.93
  6. Step 6: Final answer
    x = 535,155.17

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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.