Home / 309,617.40-464,426.10-292,510.20

Finding the Fourth Proportional to 309,617.40, 464,426.10 and 292,510.20

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Solution

The fourth proportional to 309,617.40, 464,426.10 and 292,510.20 is: 438,765.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,617.40 : 464,426.10 = 292,510.20 : x
  2. Step 2: Convert to fraction form
    309,617.40/464,426.10 = 292,510.20/x
  3. Step 3: Cross multiply
    309,617.40x = 464,426.10 × 292,510.20
  4. Step 4: Simplify right side
    309,617.40x = 135,849,371,396.22
  5. Step 5: Solve for x
    x = 135,849,371,396.22/309,617.40
  6. Step 6: Final answer
    x = 438,765.30

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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.