Home / 1,246,342.60-1,869,513.90-771,488.20

Finding the Fourth Proportional to 1,246,342.60, 1,869,513.90 and 771,488.20

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Solution

The fourth proportional to 1,246,342.60, 1,869,513.90 and 771,488.20 is: 1,157,232.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,246,342.60 : 1,869,513.90 = 771,488.20 : x
  2. Step 2: Convert to fraction form
    1,246,342.60/1,869,513.90 = 771,488.20/x
  3. Step 3: Cross multiply
    1,246,342.60x = 1,869,513.90 × 771,488.20
  4. Step 4: Simplify right side
    1,246,342.60x = 1,442,307,913,585.98
  5. Step 5: Solve for x
    x = 1,442,307,913,585.98/1,246,342.60
  6. Step 6: Final answer
    x = 1,157,232.30

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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.