Home / 898,708.20-1,240,225.68-511,504.60

Finding the Fourth Proportional to 898,708.20, 1,240,225.68 and 511,504.60

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Solution

The fourth proportional to 898,708.20, 1,240,225.68 and 511,504.60 is: 705,881.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    898,708.20 : 1,240,225.68 = 511,504.60 : x
  2. Step 2: Convert to fraction form
    898,708.20/1,240,225.68 = 511,504.60/x
  3. Step 3: Cross multiply
    898,708.20x = 1,240,225.68 × 511,504.60
  4. Step 4: Simplify right side
    898,708.20x = 634,381,140,358.13
  5. Step 5: Solve for x
    x = 634,381,140,358.13/898,708.20
  6. Step 6: Final answer
    x = 705,881.11

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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.