Home / 772,001.80-1,157,484.30-412,232.20

Finding the Fourth Proportional to 772,001.80, 1,157,484.30 and 412,232.20

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Solution

The fourth proportional to 772,001.80, 1,157,484.30 and 412,232.20 is: 618,071.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    772,001.80 : 1,157,484.30 = 412,232.20 : x
  2. Step 2: Convert to fraction form
    772,001.80/1,157,484.30 = 412,232.20/x
  3. Step 3: Cross multiply
    772,001.80x = 1,157,484.30 × 412,232.20
  4. Step 4: Simplify right side
    772,001.80x = 477,152,299,454.46
  5. Step 5: Solve for x
    x = 477,152,299,454.46/772,001.80
  6. Step 6: Final answer
    x = 618,071.49

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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.