Home / 641,032.30-884,632.35-354,545.02

Finding the Fourth Proportional to 641,032.30, 884,632.35 and 354,545.02

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Solution

The fourth proportional to 641,032.30, 884,632.35 and 354,545.02 is: 489,276.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,032.30 : 884,632.35 = 354,545.02 : x
  2. Step 2: Convert to fraction form
    641,032.30/884,632.35 = 354,545.02/x
  3. Step 3: Cross multiply
    641,032.30x = 884,632.35 × 354,545.02
  4. Step 4: Simplify right side
    641,032.30x = 313,641,994,223.40
  5. Step 5: Solve for x
    x = 313,641,994,223.40/641,032.30
  6. Step 6: Final answer
    x = 489,276.43

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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.