Home / 1,007,875.28-1,390,867.94-555,166.28

Finding the Fourth Proportional to 1,007,875.28, 1,390,867.94 and 555,166.28

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Solution

The fourth proportional to 1,007,875.28, 1,390,867.94 and 555,166.28 is: 766,129.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,007,875.28 : 1,390,867.94 = 555,166.28 : x
  2. Step 2: Convert to fraction form
    1,007,875.28/1,390,867.94 = 555,166.28/x
  3. Step 3: Cross multiply
    1,007,875.28x = 1,390,867.94 × 555,166.28
  4. Step 4: Simplify right side
    1,007,875.28x = 772,162,980,221.06
  5. Step 5: Solve for x
    x = 772,162,980,221.06/1,007,875.28
  6. Step 6: Final answer
    x = 766,129.50

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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.