Home / 642,256.29-884,886.12-424,076.31

Finding the Fourth Proportional to 642,256.29, 884,886.12 and 424,076.31

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Solution

The fourth proportional to 642,256.29, 884,886.12 and 424,076.31 is: 584,282.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,256.29 : 884,886.12 = 424,076.31 : x
  2. Step 2: Convert to fraction form
    642,256.29/884,886.12 = 424,076.31/x
  3. Step 3: Cross multiply
    642,256.29x = 884,886.12 × 424,076.31
  4. Step 4: Simplify right side
    642,256.29x = 375,259,240,539.82
  5. Step 5: Solve for x
    x = 375,259,240,539.82/642,256.29
  6. Step 6: Final answer
    x = 584,282.70

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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.