Home / 887,140.10-1,330,904.55-287,999.30

Finding the Fourth Proportional to 887,140.10, 1,330,904.55 and 287,999.30

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Solution

The fourth proportional to 887,140.10, 1,330,904.55 and 287,999.30 is: 432,062.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    887,140.10 : 1,330,904.55 = 287,999.30 : x
  2. Step 2: Convert to fraction form
    887,140.10/1,330,904.55 = 287,999.30/x
  3. Step 3: Cross multiply
    887,140.10x = 1,330,904.55 × 287,999.30
  4. Step 4: Simplify right side
    887,140.10x = 383,299,578,766.82
  5. Step 5: Solve for x
    x = 383,299,578,766.82/887,140.10
  6. Step 6: Final answer
    x = 432,062.06

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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.