Home / 495,280.20-742,264.20-438,855.60

Finding the Fourth Proportional to 495,280.20, 742,264.20 and 438,855.60

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Solution

The fourth proportional to 495,280.20, 742,264.20 and 438,855.60 is: 657,702.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,280.20 : 742,264.20 = 438,855.60 : x
  2. Step 2: Convert to fraction form
    495,280.20/742,264.20 = 438,855.60/x
  3. Step 3: Cross multiply
    495,280.20x = 742,264.20 × 438,855.60
  4. Step 4: Simplify right side
    495,280.20x = 325,746,800,849.52
  5. Step 5: Solve for x
    x = 325,746,800,849.52/495,280.20
  6. Step 6: Final answer
    x = 657,702.05

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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.