Home / 1,791,938.34-2,687,031.63-781,913.70

Finding the Fourth Proportional to 1,791,938.34, 2,687,031.63 and 781,913.70

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Solution

The fourth proportional to 1,791,938.34, 2,687,031.63 and 781,913.70 is: 1,172,488.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,791,938.34 : 2,687,031.63 = 781,913.70 : x
  2. Step 2: Convert to fraction form
    1,791,938.34/2,687,031.63 = 781,913.70/x
  3. Step 3: Cross multiply
    1,791,938.34x = 2,687,031.63 × 781,913.70
  4. Step 4: Simplify right side
    1,791,938.34x = 2,101,026,843,830.33
  5. Step 5: Solve for x
    x = 2,101,026,843,830.33/1,791,938.34
  6. Step 6: Final answer
    x = 1,172,488.36

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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.