Home / 565,741.48-780,726.02-311,109.16

Finding the Fourth Proportional to 565,741.48, 780,726.02 and 311,109.16

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Solution

The fourth proportional to 565,741.48, 780,726.02 and 311,109.16 is: 429,332.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    565,741.48 : 780,726.02 = 311,109.16 : x
  2. Step 2: Convert to fraction form
    565,741.48/780,726.02 = 311,109.16/x
  3. Step 3: Cross multiply
    565,741.48x = 780,726.02 × 311,109.16
  4. Step 4: Simplify right side
    565,741.48x = 242,891,016,272.34
  5. Step 5: Solve for x
    x = 242,891,016,272.34/565,741.48
  6. Step 6: Final answer
    x = 429,332.17

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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.