Home / 1,115,312.28-1,672,965.06-316,594.50

Finding the Fourth Proportional to 1,115,312.28, 1,672,965.06 and 316,594.50

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Solution

The fourth proportional to 1,115,312.28, 1,672,965.06 and 316,594.50 is: 474,890.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,115,312.28 : 1,672,965.06 = 316,594.50 : x
  2. Step 2: Convert to fraction form
    1,115,312.28/1,672,965.06 = 316,594.50/x
  3. Step 3: Cross multiply
    1,115,312.28x = 1,672,965.06 × 316,594.50
  4. Step 4: Simplify right side
    1,115,312.28x = 529,651,536,688.17
  5. Step 5: Solve for x
    x = 529,651,536,688.17/1,115,312.28
  6. Step 6: Final answer
    x = 474,890.80

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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.