Home / 915,365.16-1,373,028.30-316,307.88

Finding the Fourth Proportional to 915,365.16, 1,373,028.30 and 316,307.88

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Solution

The fourth proportional to 915,365.16, 1,373,028.30 and 316,307.88 is: 474,455.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,365.16 : 1,373,028.30 = 316,307.88 : x
  2. Step 2: Convert to fraction form
    915,365.16/1,373,028.30 = 316,307.88/x
  3. Step 3: Cross multiply
    915,365.16x = 1,373,028.30 × 316,307.88
  4. Step 4: Simplify right side
    915,365.16x = 434,299,670,753.00
  5. Step 5: Solve for x
    x = 434,299,670,753.00/915,365.16
  6. Step 6: Final answer
    x = 474,455.10

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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.