Home / 817,077.92-1,127,107.04-490,306.40

Finding the Fourth Proportional to 817,077.92, 1,127,107.04 and 490,306.40

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Solution

The fourth proportional to 817,077.92, 1,127,107.04 and 490,306.40 is: 676,346.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,077.92 : 1,127,107.04 = 490,306.40 : x
  2. Step 2: Convert to fraction form
    817,077.92/1,127,107.04 = 490,306.40/x
  3. Step 3: Cross multiply
    817,077.92x = 1,127,107.04 × 490,306.40
  4. Step 4: Simplify right side
    817,077.92x = 552,627,795,197.06
  5. Step 5: Solve for x
    x = 552,627,795,197.06/817,077.92
  6. Step 6: Final answer
    x = 676,346.50

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1.5x scale

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.