Home / 738,892.78-1,108,386.00-312,349.11

Finding the Fourth Proportional to 738,892.78, 1,108,386.00 and 312,349.11

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Solution

The fourth proportional to 738,892.78, 1,108,386.00 and 312,349.11 is: 468,543.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,892.78 : 1,108,386.00 = 312,349.11 : x
  2. Step 2: Convert to fraction form
    738,892.78/1,108,386.00 = 312,349.11/x
  3. Step 3: Cross multiply
    738,892.78x = 1,108,386.00 × 312,349.11
  4. Step 4: Simplify right side
    738,892.78x = 346,203,381,631.51
  5. Step 5: Solve for x
    x = 346,203,381,631.51/738,892.78
  6. Step 6: Final answer
    x = 468,543.46

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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.