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Finding the Fourth Proportional to 559,637.87, 772,277.73 and 304,983.59

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Solution

The fourth proportional to 559,637.87, 772,277.73 and 304,983.59 is: 420,865.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,637.87 : 772,277.73 = 304,983.59 : x
  2. Step 2: Convert to fraction form
    559,637.87/772,277.73 = 304,983.59/x
  3. Step 3: Cross multiply
    559,637.87x = 772,277.73 × 304,983.59
  4. Step 4: Simplify right side
    559,637.87x = 235,532,034,572.45
  5. Step 5: Solve for x
    x = 235,532,034,572.45/559,637.87
  6. Step 6: Final answer
    x = 420,865.08

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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.