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Finding the Fourth Proportional to 642,099.48, 886,088.34 and 370,167.90

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Solution

The fourth proportional to 642,099.48, 886,088.34 and 370,167.90 is: 510,826.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,099.48 : 886,088.34 = 370,167.90 : x
  2. Step 2: Convert to fraction form
    642,099.48/886,088.34 = 370,167.90/x
  3. Step 3: Cross multiply
    642,099.48x = 886,088.34 × 370,167.90
  4. Step 4: Simplify right side
    642,099.48x = 328,001,460,032.29
  5. Step 5: Solve for x
    x = 328,001,460,032.29/642,099.48
  6. Step 6: Final answer
    x = 510,826.55

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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.