Home / 913,117.60-1,371,314.80-664,080.80

Finding the Fourth Proportional to 913,117.60, 1,371,314.80 and 664,080.80

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Solution

The fourth proportional to 913,117.60, 1,371,314.80 and 664,080.80 is: 997,312.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    913,117.60 : 1,371,314.80 = 664,080.80 : x
  2. Step 2: Convert to fraction form
    913,117.60/1,371,314.80 = 664,080.80/x
  3. Step 3: Cross multiply
    913,117.60x = 1,371,314.80 × 664,080.80
  4. Step 4: Simplify right side
    913,117.60x = 910,663,829,435.84
  5. Step 5: Solve for x
    x = 910,663,829,435.84/913,117.60
  6. Step 6: Final answer
    x = 997,312.76

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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.