Home / 900,165.20-1,242,203.40-497,743.44

Finding the Fourth Proportional to 900,165.20, 1,242,203.40 and 497,743.44

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Solution

The fourth proportional to 900,165.20, 1,242,203.40 and 497,743.44 is: 686,872.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    900,165.20 : 1,242,203.40 = 497,743.44 : x
  2. Step 2: Convert to fraction form
    900,165.20/1,242,203.40 = 497,743.44/x
  3. Step 3: Cross multiply
    900,165.20x = 1,242,203.40 × 497,743.44
  4. Step 4: Simplify right side
    900,165.20x = 618,298,593,495.70
  5. Step 5: Solve for x
    x = 618,298,593,495.70/900,165.20
  6. Step 6: Final answer
    x = 686,872.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.