Home / 519,904.90-778,545.15-341,445.70

Finding the Fourth Proportional to 519,904.90, 778,545.15 and 341,445.70

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Solution

The fourth proportional to 519,904.90, 778,545.15 and 341,445.70 is: 511,306.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,904.90 : 778,545.15 = 341,445.70 : x
  2. Step 2: Convert to fraction form
    519,904.90/778,545.15 = 341,445.70/x
  3. Step 3: Cross multiply
    519,904.90x = 778,545.15 × 341,445.70
  4. Step 4: Simplify right side
    519,904.90x = 265,830,893,723.36
  5. Step 5: Solve for x
    x = 265,830,893,723.36/519,904.90
  6. Step 6: Final answer
    x = 511,306.77

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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.