Home / 1,115,300.25-1,672,947.09-316,582.47

Finding the Fourth Proportional to 1,115,300.25, 1,672,947.09 and 316,582.47

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Solution

The fourth proportional to 1,115,300.25, 1,672,947.09 and 316,582.47 is: 474,872.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,115,300.25 : 1,672,947.09 = 316,582.47 : x
  2. Step 2: Convert to fraction form
    1,115,300.25/1,672,947.09 = 316,582.47/x
  3. Step 3: Cross multiply
    1,115,300.25x = 1,672,947.09 × 316,582.47
  4. Step 4: Simplify right side
    1,115,300.25x = 529,625,721,931.51
  5. Step 5: Solve for x
    x = 529,625,721,931.51/1,115,300.25
  6. Step 6: Final answer
    x = 474,872.77

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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.