Home / 1,258,885.80-1,888,328.70-1,087,643.70

Finding the Fourth Proportional to 1,258,885.80, 1,888,328.70 and 1,087,643.70

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Solution

The fourth proportional to 1,258,885.80, 1,888,328.70 and 1,087,643.70 is: 1,631,465.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,258,885.80 : 1,888,328.70 = 1,087,643.70 : x
  2. Step 2: Convert to fraction form
    1,258,885.80/1,888,328.70 = 1,087,643.70/x
  3. Step 3: Cross multiply
    1,258,885.80x = 1,888,328.70 × 1,087,643.70
  4. Step 4: Simplify right side
    1,258,885.80x = 2,053,828,814,084.19
  5. Step 5: Solve for x
    x = 2,053,828,814,084.19/1,258,885.80
  6. Step 6: Final answer
    x = 1,631,465.55

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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.