Home / 727,869.60-1,091,545.20-328,701.60

Finding the Fourth Proportional to 727,869.60, 1,091,545.20 and 328,701.60

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Solution

The fourth proportional to 727,869.60, 1,091,545.20 and 328,701.60 is: 492,935.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,869.60 : 1,091,545.20 = 328,701.60 : x
  2. Step 2: Convert to fraction form
    727,869.60/1,091,545.20 = 328,701.60/x
  3. Step 3: Cross multiply
    727,869.60x = 1,091,545.20 × 328,701.60
  4. Step 4: Simplify right side
    727,869.60x = 358,792,653,712.32
  5. Step 5: Solve for x
    x = 358,792,653,712.32/727,869.60
  6. Step 6: Final answer
    x = 492,935.35

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1.5x scale

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.