Home / 1,220,010.72-1,683,586.08-710,680.20

Finding the Fourth Proportional to 1,220,010.72, 1,683,586.08 and 710,680.20

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Solution

The fourth proportional to 1,220,010.72, 1,683,586.08 and 710,680.20 is: 980,721.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,220,010.72 : 1,683,586.08 = 710,680.20 : x
  2. Step 2: Convert to fraction form
    1,220,010.72/1,683,586.08 = 710,680.20/x
  3. Step 3: Cross multiply
    1,220,010.72x = 1,683,586.08 × 710,680.20
  4. Step 4: Simplify right side
    1,220,010.72x = 1,196,491,292,051.62
  5. Step 5: Solve for x
    x = 1,196,491,292,051.62/1,220,010.72
  6. Step 6: Final answer
    x = 980,721.95

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Double scale
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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.