Home / 916,722.60-1,376,120.70-542,956.20

Finding the Fourth Proportional to 916,722.60, 1,376,120.70 and 542,956.20

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Solution

The fourth proportional to 916,722.60, 1,376,120.70 and 542,956.20 is: 815,048.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    916,722.60 : 1,376,120.70 = 542,956.20 : x
  2. Step 2: Convert to fraction form
    916,722.60/1,376,120.70 = 542,956.20/x
  3. Step 3: Cross multiply
    916,722.60x = 1,376,120.70 × 542,956.20
  4. Step 4: Simplify right side
    916,722.60x = 747,173,266,013.34
  5. Step 5: Solve for x
    x = 747,173,266,013.34/916,722.60
  6. Step 6: Final answer
    x = 815,048.38

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1.5x scale

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.