Home / 926,631.56-1,278,680.90-518,639.96

Finding the Fourth Proportional to 926,631.56, 1,278,680.90 and 518,639.96

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Solution

The fourth proportional to 926,631.56, 1,278,680.90 and 518,639.96 is: 715,683.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    926,631.56 : 1,278,680.90 = 518,639.96 : x
  2. Step 2: Convert to fraction form
    926,631.56/1,278,680.90 = 518,639.96/x
  3. Step 3: Cross multiply
    926,631.56x = 1,278,680.90 × 518,639.96
  4. Step 4: Simplify right side
    926,631.56x = 663,175,010,828.76
  5. Step 5: Solve for x
    x = 663,175,010,828.76/926,631.56
  6. Step 6: Final answer
    x = 715,683.60

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1.5x scale

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.