Home / 1,246,284.60-1,869,426.90-771,430.20

Finding the Fourth Proportional to 1,246,284.60, 1,869,426.90 and 771,430.20

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Solution

The fourth proportional to 1,246,284.60, 1,869,426.90 and 771,430.20 is: 1,157,145.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,246,284.60 : 1,869,426.90 = 771,430.20 : x
  2. Step 2: Convert to fraction form
    1,246,284.60/1,869,426.90 = 771,430.20/x
  3. Step 3: Cross multiply
    1,246,284.60x = 1,869,426.90 × 771,430.20
  4. Step 4: Simplify right side
    1,246,284.60x = 1,442,132,367,352.38
  5. Step 5: Solve for x
    x = 1,442,132,367,352.38/1,246,284.60
  6. Step 6: Final answer
    x = 1,157,145.30

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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.