Home / 887,621.40-1,331,432.10-438,411.60

Finding the Fourth Proportional to 887,621.40, 1,331,432.10 and 438,411.60

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Solution

The fourth proportional to 887,621.40, 1,331,432.10 and 438,411.60 is: 657,617.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    887,621.40 : 1,331,432.10 = 438,411.60 : x
  2. Step 2: Convert to fraction form
    887,621.40/1,331,432.10 = 438,411.60/x
  3. Step 3: Cross multiply
    887,621.40x = 1,331,432.10 × 438,411.60
  4. Step 4: Simplify right side
    887,621.40x = 583,715,277,252.36
  5. Step 5: Solve for x
    x = 583,715,277,252.36/887,621.40
  6. Step 6: Final answer
    x = 657,617.40

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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.