Home / 916,739.10-1,376,145.45-542,972.70

Finding the Fourth Proportional to 916,739.10, 1,376,145.45 and 542,972.70

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Solution

The fourth proportional to 916,739.10, 1,376,145.45 and 542,972.70 is: 815,073.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    916,739.10 : 1,376,145.45 = 542,972.70 : x
  2. Step 2: Convert to fraction form
    916,739.10/1,376,145.45 = 542,972.70/x
  3. Step 3: Cross multiply
    916,739.10x = 1,376,145.45 × 542,972.70
  4. Step 4: Simplify right side
    916,739.10x = 747,209,410,579.22
  5. Step 5: Solve for x
    x = 747,209,410,579.22/916,739.10
  6. Step 6: Final answer
    x = 815,073.13

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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.