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Finding the Fourth Proportional to 569,385.01, 785,751.51 and 311,263.09

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Solution

The fourth proportional to 569,385.01, 785,751.51 and 311,263.09 is: 429,543.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    569,385.01 : 785,751.51 = 311,263.09 : x
  2. Step 2: Convert to fraction form
    569,385.01/785,751.51 = 311,263.09/x
  3. Step 3: Cross multiply
    569,385.01x = 785,751.51 × 311,263.09
  4. Step 4: Simplify right side
    569,385.01x = 244,575,442,974.77
  5. Step 5: Solve for x
    x = 244,575,442,974.77/569,385.01
  6. Step 6: Final answer
    x = 429,543.17

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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.