Home / 1,186,480.12-1,779,706.80-287,931.73

Finding the Fourth Proportional to 1,186,480.12, 1,779,706.80 and 287,931.73

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Solution

The fourth proportional to 1,186,480.12, 1,779,706.80 and 287,931.73 is: 431,894.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,186,480.12 : 1,779,706.80 = 287,931.73 : x
  2. Step 2: Convert to fraction form
    1,186,480.12/1,779,706.80 = 287,931.73/x
  3. Step 3: Cross multiply
    1,186,480.12x = 1,779,706.80 × 287,931.73
  4. Step 4: Simplify right side
    1,186,480.12x = 512,434,057,816.76
  5. Step 5: Solve for x
    x = 512,434,057,816.76/1,186,480.12
  6. Step 6: Final answer
    x = 431,894.35

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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.