Home / 1,126,408.52-1,688,931.41-442,476.56

Finding the Fourth Proportional to 1,126,408.52, 1,688,931.41 and 442,476.56

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Solution

The fourth proportional to 1,126,408.52, 1,688,931.41 and 442,476.56 is: 663,447.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,126,408.52 : 1,688,931.41 = 442,476.56 : x
  2. Step 2: Convert to fraction form
    1,126,408.52/1,688,931.41 = 442,476.56/x
  3. Step 3: Cross multiply
    1,126,408.52x = 1,688,931.41 × 442,476.56
  4. Step 4: Simplify right side
    1,126,408.52x = 747,312,549,715.71
  5. Step 5: Solve for x
    x = 747,312,549,715.71/1,126,408.52
  6. Step 6: Final answer
    x = 663,447.18

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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.