Home / 788,082.90-1,182,124.35-455,270.10

Finding the Fourth Proportional to 788,082.90, 1,182,124.35 and 455,270.10

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Solution

The fourth proportional to 788,082.90, 1,182,124.35 and 455,270.10 is: 682,905.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    788,082.90 : 1,182,124.35 = 455,270.10 : x
  2. Step 2: Convert to fraction form
    788,082.90/1,182,124.35 = 455,270.10/x
  3. Step 3: Cross multiply
    788,082.90x = 1,182,124.35 × 455,270.10
  4. Step 4: Simplify right side
    788,082.90x = 538,185,871,036.94
  5. Step 5: Solve for x
    x = 538,185,871,036.94/788,082.90
  6. Step 6: Final answer
    x = 682,905.15

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.