Home / 878,637.17-1,212,503.21-496,663.95

Finding the Fourth Proportional to 878,637.17, 1,212,503.21 and 496,663.95

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Solution

The fourth proportional to 878,637.17, 1,212,503.21 and 496,663.95 is: 685,387.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    878,637.17 : 1,212,503.21 = 496,663.95 : x
  2. Step 2: Convert to fraction form
    878,637.17/1,212,503.21 = 496,663.95/x
  3. Step 3: Cross multiply
    878,637.17x = 1,212,503.21 × 496,663.95
  4. Step 4: Simplify right side
    878,637.17x = 602,206,637,592.34
  5. Step 5: Solve for x
    x = 602,206,637,592.34/878,637.17
  6. Step 6: Final answer
    x = 685,387.16

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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.