Home / 692,761.20-1,039,141.80-425,655.60

Finding the Fourth Proportional to 692,761.20, 1,039,141.80 and 425,655.60

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Solution

The fourth proportional to 692,761.20, 1,039,141.80 and 425,655.60 is: 638,483.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,761.20 : 1,039,141.80 = 425,655.60 : x
  2. Step 2: Convert to fraction form
    692,761.20/1,039,141.80 = 425,655.60/x
  3. Step 3: Cross multiply
    692,761.20x = 1,039,141.80 × 425,655.60
  4. Step 4: Simplify right side
    692,761.20x = 442,316,526,364.08
  5. Step 5: Solve for x
    x = 442,316,526,364.08/692,761.20
  6. Step 6: Final answer
    x = 638,483.40

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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.