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Finding the Fourth Proportional to 610,131.78, 915,139.35 and 373,352.58

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Solution

The fourth proportional to 610,131.78, 915,139.35 and 373,352.58 is: 559,993.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,131.78 : 915,139.35 = 373,352.58 : x
  2. Step 2: Convert to fraction form
    610,131.78/915,139.35 = 373,352.58/x
  3. Step 3: Cross multiply
    610,131.78x = 915,139.35 × 373,352.58
  4. Step 4: Simplify right side
    610,131.78x = 341,669,637,382.02
  5. Step 5: Solve for x
    x = 341,669,637,382.02/610,131.78
  6. Step 6: Final answer
    x = 559,993.18

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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.