Home / 817,168.49-1,127,231.75-490,397.93

Finding the Fourth Proportional to 817,168.49, 1,127,231.75 and 490,397.93

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Solution

The fourth proportional to 817,168.49, 1,127,231.75 and 490,397.93 is: 676,472.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,168.49 : 1,127,231.75 = 490,397.93 : x
  2. Step 2: Convert to fraction form
    817,168.49/1,127,231.75 = 490,397.93/x
  3. Step 3: Cross multiply
    817,168.49x = 1,127,231.75 × 490,397.93
  4. Step 4: Simplify right side
    817,168.49x = 552,792,114,378.29
  5. Step 5: Solve for x
    x = 552,792,114,378.29/817,168.49
  6. Step 6: Final answer
    x = 676,472.63

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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.