Home / 709,946.04-979,729.13-387,656.13

Finding the Fourth Proportional to 709,946.04, 979,729.13 and 387,656.13

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Solution

The fourth proportional to 709,946.04, 979,729.13 and 387,656.13 is: 534,967.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    709,946.04 : 979,729.13 = 387,656.13 : x
  2. Step 2: Convert to fraction form
    709,946.04/979,729.13 = 387,656.13/x
  3. Step 3: Cross multiply
    709,946.04x = 979,729.13 × 387,656.13
  4. Step 4: Simplify right side
    709,946.04x = 379,798,002,984.07
  5. Step 5: Solve for x
    x = 379,798,002,984.07/709,946.04
  6. Step 6: Final answer
    x = 534,967.42

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1.5x scale

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.