Home / 915,426.60-1,373,139.90-579,503.40

Finding the Fourth Proportional to 915,426.60, 1,373,139.90 and 579,503.40

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Solution

The fourth proportional to 915,426.60, 1,373,139.90 and 579,503.40 is: 869,255.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,426.60 : 1,373,139.90 = 579,503.40 : x
  2. Step 2: Convert to fraction form
    915,426.60/1,373,139.90 = 579,503.40/x
  3. Step 3: Cross multiply
    915,426.60x = 1,373,139.90 × 579,503.40
  4. Step 4: Simplify right side
    915,426.60x = 795,739,240,725.66
  5. Step 5: Solve for x
    x = 795,739,240,725.66/915,426.60
  6. Step 6: Final answer
    x = 869,255.10

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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.