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Finding the Fourth Proportional to 675,479.57, 932,009.18 and 403,494.21

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Solution

The fourth proportional to 675,479.57, 932,009.18 and 403,494.21 is: 556,730.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    675,479.57 : 932,009.18 = 403,494.21 : x
  2. Step 2: Convert to fraction form
    675,479.57/932,009.18 = 403,494.21/x
  3. Step 3: Cross multiply
    675,479.57x = 932,009.18 × 403,494.21
  4. Step 4: Simplify right side
    675,479.57x = 376,060,305,779.38
  5. Step 5: Solve for x
    x = 376,060,305,779.38/675,479.57
  6. Step 6: Final answer
    x = 556,730.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.