Home / 562,621.36-776,437.20-307,972.74

Finding the Fourth Proportional to 562,621.36, 776,437.20 and 307,972.74

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Solution

The fourth proportional to 562,621.36, 776,437.20 and 307,972.74 is: 425,013.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,621.36 : 776,437.20 = 307,972.74 : x
  2. Step 2: Convert to fraction form
    562,621.36/776,437.20 = 307,972.74/x
  3. Step 3: Cross multiply
    562,621.36x = 776,437.20 × 307,972.74
  4. Step 4: Simplify right side
    562,621.36x = 239,121,491,921.93
  5. Step 5: Solve for x
    x = 239,121,491,921.93/562,621.36
  6. Step 6: Final answer
    x = 425,013.18

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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.