Home / 999,487.20-1,499,230.80-289,538.40

Finding the Fourth Proportional to 999,487.20, 1,499,230.80 and 289,538.40

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Solution

The fourth proportional to 999,487.20, 1,499,230.80 and 289,538.40 is: 434,307.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    999,487.20 : 1,499,230.80 = 289,538.40 : x
  2. Step 2: Convert to fraction form
    999,487.20/1,499,230.80 = 289,538.40/x
  3. Step 3: Cross multiply
    999,487.20x = 1,499,230.80 × 289,538.40
  4. Step 4: Simplify right side
    999,487.20x = 434,084,887,062.72
  5. Step 5: Solve for x
    x = 434,084,887,062.72/999,487.20
  6. Step 6: Final answer
    x = 434,307.60

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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.