Home / 747,736.39-1,031,870.95-408,204.64

Finding the Fourth Proportional to 747,736.39, 1,031,870.95 and 408,204.64

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Solution

The fourth proportional to 747,736.39, 1,031,870.95 and 408,204.64 is: 563,319.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,736.39 : 1,031,870.95 = 408,204.64 : x
  2. Step 2: Convert to fraction form
    747,736.39/1,031,870.95 = 408,204.64/x
  3. Step 3: Cross multiply
    747,736.39x = 1,031,870.95 × 408,204.64
  4. Step 4: Simplify right side
    747,736.39x = 421,214,509,671.21
  5. Step 5: Solve for x
    x = 421,214,509,671.21/747,736.39
  6. Step 6: Final answer
    x = 563,319.53

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.