Home / 401,815.40-602,723.10-260,097.80

Finding the Fourth Proportional to 401,815.40, 602,723.10 and 260,097.80

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Solution

The fourth proportional to 401,815.40, 602,723.10 and 260,097.80 is: 390,146.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,815.40 : 602,723.10 = 260,097.80 : x
  2. Step 2: Convert to fraction form
    401,815.40/602,723.10 = 260,097.80/x
  3. Step 3: Cross multiply
    401,815.40x = 602,723.10 × 260,097.80
  4. Step 4: Simplify right side
    401,815.40x = 156,766,952,319.18
  5. Step 5: Solve for x
    x = 156,766,952,319.18/401,815.40
  6. Step 6: Final answer
    x = 390,146.70

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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.