Home / 485,827.77-670,443.28-270,981.75

Finding the Fourth Proportional to 485,827.77, 670,443.28 and 270,981.75

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Solution

The fourth proportional to 485,827.77, 670,443.28 and 270,981.75 is: 373,955.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,827.77 : 670,443.28 = 270,981.75 : x
  2. Step 2: Convert to fraction form
    485,827.77/670,443.28 = 270,981.75/x
  3. Step 3: Cross multiply
    485,827.77x = 670,443.28 × 270,981.75
  4. Step 4: Simplify right side
    485,827.77x = 181,677,895,126.85
  5. Step 5: Solve for x
    x = 181,677,895,126.85/485,827.77
  6. Step 6: Final answer
    x = 373,955.35

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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.