Home / 565,415.24-780,279.06-307,292.20

Finding the Fourth Proportional to 565,415.24, 780,279.06 and 307,292.20

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Solution

The fourth proportional to 565,415.24, 780,279.06 and 307,292.20 is: 424,066.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    565,415.24 : 780,279.06 = 307,292.20 : x
  2. Step 2: Convert to fraction form
    565,415.24/780,279.06 = 307,292.20/x
  3. Step 3: Cross multiply
    565,415.24x = 780,279.06 × 307,292.20
  4. Step 4: Simplify right side
    565,415.24x = 239,773,667,010.63
  5. Step 5: Solve for x
    x = 239,773,667,010.63/565,415.24
  6. Step 6: Final answer
    x = 424,066.51

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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.