Home / 1,390,031.79-2,085,494.81-632,143.95

Finding the Fourth Proportional to 1,390,031.79, 2,085,494.81 and 632,143.95

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Solution

The fourth proportional to 1,390,031.79, 2,085,494.81 and 632,143.95 is: 948,419.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,390,031.79 : 2,085,494.81 = 632,143.95 : x
  2. Step 2: Convert to fraction form
    1,390,031.79/2,085,494.81 = 632,143.95/x
  3. Step 3: Cross multiply
    1,390,031.79x = 2,085,494.81 × 632,143.95
  4. Step 4: Simplify right side
    1,390,031.79x = 1,318,332,926,897.90
  5. Step 5: Solve for x
    x = 1,318,332,926,897.90/1,390,031.79
  6. Step 6: Final answer
    x = 948,419.26

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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.