Home / 915,017.64-1,372,710.06-316,000.76

Finding the Fourth Proportional to 915,017.64, 1,372,710.06 and 316,000.76

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Solution

The fourth proportional to 915,017.64, 1,372,710.06 and 316,000.76 is: 474,064.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,017.64 : 1,372,710.06 = 316,000.76 : x
  2. Step 2: Convert to fraction form
    915,017.64/1,372,710.06 = 316,000.76/x
  3. Step 3: Cross multiply
    915,017.64x = 1,372,710.06 × 316,000.76
  4. Step 4: Simplify right side
    915,017.64x = 433,777,422,219.65
  5. Step 5: Solve for x
    x = 433,777,422,219.65/915,017.64
  6. Step 6: Final answer
    x = 474,064.55

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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.