Home / 565,581.69-780,534.23-310,985.73

Finding the Fourth Proportional to 565,581.69, 780,534.23 and 310,985.73

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Solution

The fourth proportional to 565,581.69, 780,534.23 and 310,985.73 is: 429,177.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    565,581.69 : 780,534.23 = 310,985.73 : x
  2. Step 2: Convert to fraction form
    565,581.69/780,534.23 = 310,985.73/x
  3. Step 3: Cross multiply
    565,581.69x = 780,534.23 × 310,985.73
  4. Step 4: Simplify right side
    565,581.69x = 242,735,005,751.61
  5. Step 5: Solve for x
    x = 242,735,005,751.61/565,581.69
  6. Step 6: Final answer
    x = 429,177.62

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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.