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Finding the Fourth Proportional to 1,342,641.90, 2,013,962.85 and 943,733.10

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Solution

The fourth proportional to 1,342,641.90, 2,013,962.85 and 943,733.10 is: 1,415,599.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,342,641.90 : 2,013,962.85 = 943,733.10 : x
  2. Step 2: Convert to fraction form
    1,342,641.90/2,013,962.85 = 943,733.10/x
  3. Step 3: Cross multiply
    1,342,641.90x = 2,013,962.85 × 943,733.10
  4. Step 4: Simplify right side
    1,342,641.90x = 1,900,643,403,715.34
  5. Step 5: Solve for x
    x = 1,900,643,403,715.34/1,342,641.90
  6. Step 6: Final answer
    x = 1,415,599.65

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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.