Home / 1,931,302.60-2,897,645.10-809,715.40

Finding the Fourth Proportional to 1,931,302.60, 2,897,645.10 and 809,715.40

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Solution

The fourth proportional to 1,931,302.60, 2,897,645.10 and 809,715.40 is: 1,214,862.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,931,302.60 : 2,897,645.10 = 809,715.40 : x
  2. Step 2: Convert to fraction form
    1,931,302.60/2,897,645.10 = 809,715.40/x
  3. Step 3: Cross multiply
    1,931,302.60x = 2,897,645.10 × 809,715.40
  4. Step 4: Simplify right side
    1,931,302.60x = 2,346,267,861,204.54
  5. Step 5: Solve for x
    x = 2,346,267,861,204.54/1,931,302.60
  6. Step 6: Final answer
    x = 1,214,862.89

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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.