Home / 745,616.61-1,118,432.21-213,133.95

Finding the Fourth Proportional to 745,616.61, 1,118,432.21 and 213,133.95

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Solution

The fourth proportional to 745,616.61, 1,118,432.21 and 213,133.95 is: 319,703.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,616.61 : 1,118,432.21 = 213,133.95 : x
  2. Step 2: Convert to fraction form
    745,616.61/1,118,432.21 = 213,133.95/x
  3. Step 3: Cross multiply
    745,616.61x = 1,118,432.21 × 213,133.95
  4. Step 4: Simplify right side
    745,616.61x = 238,375,873,658.86
  5. Step 5: Solve for x
    x = 238,375,873,658.86/745,616.61
  6. Step 6: Final answer
    x = 319,703.01

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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.