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Finding the Fourth Proportional to 448,318.80, 670,495.32 and 398,746.80

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Solution

The fourth proportional to 448,318.80, 670,495.32 and 398,746.80 is: 596,356.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,318.80 : 670,495.32 = 398,746.80 : x
  2. Step 2: Convert to fraction form
    448,318.80/670,495.32 = 398,746.80/x
  3. Step 3: Cross multiply
    448,318.80x = 670,495.32 × 398,746.80
  4. Step 4: Simplify right side
    448,318.80x = 267,357,863,264.98
  5. Step 5: Solve for x
    x = 267,357,863,264.98/448,318.80
  6. Step 6: Final answer
    x = 596,356.57

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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.