Home / 771,579.60-1,158,116.40-372,500.40

Finding the Fourth Proportional to 771,579.60, 1,158,116.40 and 372,500.40

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Solution

The fourth proportional to 771,579.60, 1,158,116.40 and 372,500.40 is: 559,111.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,579.60 : 1,158,116.40 = 372,500.40 : x
  2. Step 2: Convert to fraction form
    771,579.60/1,158,116.40 = 372,500.40/x
  3. Step 3: Cross multiply
    771,579.60x = 1,158,116.40 × 372,500.40
  4. Step 4: Simplify right side
    771,579.60x = 431,398,822,246.56
  5. Step 5: Solve for x
    x = 431,398,822,246.56/771,579.60
  6. Step 6: Final answer
    x = 559,111.23

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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.