Home / 787,545.45-1,086,359.82-497,053.77

Finding the Fourth Proportional to 787,545.45, 1,086,359.82 and 497,053.77

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Solution

The fourth proportional to 787,545.45, 1,086,359.82 and 497,053.77 is: 685,648.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,545.45 : 1,086,359.82 = 497,053.77 : x
  2. Step 2: Convert to fraction form
    787,545.45/1,086,359.82 = 497,053.77/x
  3. Step 3: Cross multiply
    787,545.45x = 1,086,359.82 × 497,053.77
  4. Step 4: Simplify right side
    787,545.45x = 539,979,238,169.72
  5. Step 5: Solve for x
    x = 539,979,238,169.72/787,545.45
  6. Step 6: Final answer
    x = 685,648.35

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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.