Home / 669,643.20-1,004,349.60-248,702.40

Finding the Fourth Proportional to 669,643.20, 1,004,349.60 and 248,702.40

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Solution

The fourth proportional to 669,643.20, 1,004,349.60 and 248,702.40 is: 373,010.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,643.20 : 1,004,349.60 = 248,702.40 : x
  2. Step 2: Convert to fraction form
    669,643.20/1,004,349.60 = 248,702.40/x
  3. Step 3: Cross multiply
    669,643.20x = 1,004,349.60 × 248,702.40
  4. Step 4: Simplify right side
    669,643.20x = 249,784,155,959.04
  5. Step 5: Solve for x
    x = 249,784,155,959.04/669,643.20
  6. Step 6: Final answer
    x = 373,010.82

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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.