Home / 921,015.60-1,381,523.40-915,110.70

Finding the Fourth Proportional to 921,015.60, 1,381,523.40 and 915,110.70

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Solution

The fourth proportional to 921,015.60, 1,381,523.40 and 915,110.70 is: 1,372,666.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    921,015.60 : 1,381,523.40 = 915,110.70 : x
  2. Step 2: Convert to fraction form
    921,015.60/1,381,523.40 = 915,110.70/x
  3. Step 3: Cross multiply
    921,015.60x = 1,381,523.40 × 915,110.70
  4. Step 4: Simplify right side
    921,015.60x = 1,264,246,845,640.38
  5. Step 5: Solve for x
    x = 1,264,246,845,640.38/921,015.60
  6. Step 6: Final answer
    x = 1,372,666.05

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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.