Home / 781,068.40-1,171,602.60-282,315.76

Finding the Fourth Proportional to 781,068.40, 1,171,602.60 and 282,315.76

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Solution

The fourth proportional to 781,068.40, 1,171,602.60 and 282,315.76 is: 423,473.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,068.40 : 1,171,602.60 = 282,315.76 : x
  2. Step 2: Convert to fraction form
    781,068.40/1,171,602.60 = 282,315.76/x
  3. Step 3: Cross multiply
    781,068.40x = 1,171,602.60 × 282,315.76
  4. Step 4: Simplify right side
    781,068.40x = 330,761,878,436.98
  5. Step 5: Solve for x
    x = 330,761,878,436.98/781,068.40
  6. Step 6: Final answer
    x = 423,473.64

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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.