Home / 817,665.36-1,128,283.86-473,507.88

Finding the Fourth Proportional to 817,665.36, 1,128,283.86 and 473,507.88

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Solution

The fourth proportional to 817,665.36, 1,128,283.86 and 473,507.88 is: 653,386.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,665.36 : 1,128,283.86 = 473,507.88 : x
  2. Step 2: Convert to fraction form
    817,665.36/1,128,283.86 = 473,507.88/x
  3. Step 3: Cross multiply
    817,665.36x = 1,128,283.86 × 473,507.88
  4. Step 4: Simplify right side
    817,665.36x = 534,251,298,586.82
  5. Step 5: Solve for x
    x = 534,251,298,586.82/817,665.36
  6. Step 6: Final answer
    x = 653,386.24

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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.