Home / 485,895.69-670,531.44-268,106.31

Finding the Fourth Proportional to 485,895.69, 670,531.44 and 268,106.31

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Solution

The fourth proportional to 485,895.69, 670,531.44 and 268,106.31 is: 369,984.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,895.69 : 670,531.44 = 268,106.31 : x
  2. Step 2: Convert to fraction form
    485,895.69/670,531.44 = 268,106.31/x
  3. Step 3: Cross multiply
    485,895.69x = 670,531.44 × 268,106.31
  4. Step 4: Simplify right side
    485,895.69x = 179,773,710,117.39
  5. Step 5: Solve for x
    x = 179,773,710,117.39/485,895.69
  6. Step 6: Final answer
    x = 369,984.16

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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.