Home / 771,679.80-1,157,130.90-456,233.40

Finding the Fourth Proportional to 771,679.80, 1,157,130.90 and 456,233.40

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Solution

The fourth proportional to 771,679.80, 1,157,130.90 and 456,233.40 is: 684,120.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,679.80 : 1,157,130.90 = 456,233.40 : x
  2. Step 2: Convert to fraction form
    771,679.80/1,157,130.90 = 456,233.40/x
  3. Step 3: Cross multiply
    771,679.80x = 1,157,130.90 × 456,233.40
  4. Step 4: Simplify right side
    771,679.80x = 527,921,764,752.06
  5. Step 5: Solve for x
    x = 527,921,764,752.06/771,679.80
  6. Step 6: Final answer
    x = 684,120.23

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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.