Home / 482,570.28-723,985.02-212,721.48

Finding the Fourth Proportional to 482,570.28, 723,985.02 and 212,721.48

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Solution

The fourth proportional to 482,570.28, 723,985.02 and 212,721.48 is: 319,139.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,570.28 : 723,985.02 = 212,721.48 : x
  2. Step 2: Convert to fraction form
    482,570.28/723,985.02 = 212,721.48/x
  3. Step 3: Cross multiply
    482,570.28x = 723,985.02 × 212,721.48
  4. Step 4: Simplify right side
    482,570.28x = 154,007,164,952.23
  5. Step 5: Solve for x
    x = 154,007,164,952.23/482,570.28
  6. Step 6: Final answer
    x = 319,139.35

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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.