Home / 480,946.40-663,848.88-311,176.16

Finding the Fourth Proportional to 480,946.40, 663,848.88 and 311,176.16

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Solution

The fourth proportional to 480,946.40, 663,848.88 and 311,176.16 is: 429,515.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,946.40 : 663,848.88 = 311,176.16 : x
  2. Step 2: Convert to fraction form
    480,946.40/663,848.88 = 311,176.16/x
  3. Step 3: Cross multiply
    480,946.40x = 663,848.88 × 311,176.16
  4. Step 4: Simplify right side
    480,946.40x = 206,573,945,298.70
  5. Step 5: Solve for x
    x = 206,573,945,298.70/480,946.40
  6. Step 6: Final answer
    x = 429,515.52

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.