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Finding the Fourth Proportional to 520,290.01, 780,509.39 and 160,491.25

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Solution

The fourth proportional to 520,290.01, 780,509.39 and 160,491.25 is: 240,759.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,290.01 : 780,509.39 = 160,491.25 : x
  2. Step 2: Convert to fraction form
    520,290.01/780,509.39 = 160,491.25/x
  3. Step 3: Cross multiply
    520,290.01x = 780,509.39 × 160,491.25
  4. Step 4: Simplify right side
    520,290.01x = 125,264,927,637.84
  5. Step 5: Solve for x
    x = 125,264,927,637.84/520,290.01
  6. Step 6: Final answer
    x = 240,759.82

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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.