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Finding the Fourth Proportional to 749,669, 1,124,504.58 and 306,437

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Solution

The fourth proportional to 749,669, 1,124,504.58 and 306,437 is: 459,655.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    749,669 : 1,124,504.58 = 306,437 : x
  2. Step 2: Convert to fraction form
    749,669/1,124,504.58 = 306,437/x
  3. Step 3: Cross multiply
    749,669x = 1,124,504.58 × 306,437
  4. Step 4: Simplify right side
    749,669x = 344,589,809,981.46
  5. Step 5: Solve for x
    x = 344,589,809,981.46/749,669
  6. Step 6: Final answer
    x = 459,655.94

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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.