Home / 1,007,918.25-1,390,927.19-555,209.25

Finding the Fourth Proportional to 1,007,918.25, 1,390,927.19 and 555,209.25

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Solution

The fourth proportional to 1,007,918.25, 1,390,927.19 and 555,209.25 is: 766,188.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,007,918.25 : 1,390,927.19 = 555,209.25 : x
  2. Step 2: Convert to fraction form
    1,007,918.25/1,390,927.19 = 555,209.25/x
  3. Step 3: Cross multiply
    1,007,918.25x = 1,390,927.19 × 555,209.25
  4. Step 4: Simplify right side
    1,007,918.25x = 772,255,639,188.46
  5. Step 5: Solve for x
    x = 772,255,639,188.46/1,007,918.25
  6. Step 6: Final answer
    x = 766,188.77

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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.