Home / 642,545.02-886,701.49-352,154.35

Finding the Fourth Proportional to 642,545.02, 886,701.49 and 352,154.35

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Solution

The fourth proportional to 642,545.02, 886,701.49 and 352,154.35 is: 485,967.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,545.02 : 886,701.49 = 352,154.35 : x
  2. Step 2: Convert to fraction form
    642,545.02/886,701.49 = 352,154.35/x
  3. Step 3: Cross multiply
    642,545.02x = 886,701.49 × 352,154.35
  4. Step 4: Simplify right side
    642,545.02x = 312,255,786,854.98
  5. Step 5: Solve for x
    x = 312,255,786,854.98/642,545.02
  6. Step 6: Final answer
    x = 485,967.17

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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.