Home / 986,311.47-1,478,159.28-506,519.87

Finding the Fourth Proportional to 986,311.47, 1,478,159.28 and 506,519.87

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Solution

The fourth proportional to 986,311.47, 1,478,159.28 and 506,519.87 is: 759,108.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    986,311.47 : 1,478,159.28 = 506,519.87 : x
  2. Step 2: Convert to fraction form
    986,311.47/1,478,159.28 = 506,519.87/x
  3. Step 3: Cross multiply
    986,311.47x = 1,478,159.28 × 506,519.87
  4. Step 4: Simplify right side
    986,311.47x = 748,717,046,344.89
  5. Step 5: Solve for x
    x = 748,717,046,344.89/986,311.47
  6. Step 6: Final answer
    x = 759,108.12

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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.