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Finding the Fourth Proportional to 607,281.09, 910,312.01 and 207,648.56

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Solution

The fourth proportional to 607,281.09, 910,312.01 and 207,648.56 is: 311,264.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,281.09 : 910,312.01 = 207,648.56 : x
  2. Step 2: Convert to fraction form
    607,281.09/910,312.01 = 207,648.56/x
  3. Step 3: Cross multiply
    607,281.09x = 910,312.01 × 207,648.56
  4. Step 4: Simplify right side
    607,281.09x = 189,024,972,437.40
  5. Step 5: Solve for x
    x = 189,024,972,437.40/607,281.09
  6. Step 6: Final answer
    x = 311,264.38

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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.