Home / 700,545.86-966,723.33-390,431.91

Finding the Fourth Proportional to 700,545.86, 966,723.33 and 390,431.91

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Solution

The fourth proportional to 700,545.86, 966,723.33 and 390,431.91 is: 538,779.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    700,545.86 : 966,723.33 = 390,431.91 : x
  2. Step 2: Convert to fraction form
    700,545.86/966,723.33 = 390,431.91/x
  3. Step 3: Cross multiply
    700,545.86x = 966,723.33 × 390,431.91
  4. Step 4: Simplify right side
    700,545.86x = 377,439,636,086.34
  5. Step 5: Solve for x
    x = 377,439,636,086.34/700,545.86
  6. Step 6: Final answer
    x = 538,779.34

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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.