Home / 1,640,434.90-2,460,781.18-442,339.18

Finding the Fourth Proportional to 1,640,434.90, 2,460,781.18 and 442,339.18

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Solution

The fourth proportional to 1,640,434.90, 2,460,781.18 and 442,339.18 is: 663,543.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,640,434.90 : 2,460,781.18 = 442,339.18 : x
  2. Step 2: Convert to fraction form
    1,640,434.90/2,460,781.18 = 442,339.18/x
  3. Step 3: Cross multiply
    1,640,434.90x = 2,460,781.18 × 442,339.18
  4. Step 4: Simplify right side
    1,640,434.90x = 1,088,499,929,320.63
  5. Step 5: Solve for x
    x = 1,088,499,929,320.63/1,640,434.90
  6. Step 6: Final answer
    x = 663,543.51

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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.