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Finding the Fourth Proportional to 562,422.64, 776,118.36 and 307,784.56

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Solution

The fourth proportional to 562,422.64, 776,118.36 and 307,784.56 is: 424,729.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,422.64 : 776,118.36 = 307,784.56 : x
  2. Step 2: Convert to fraction form
    562,422.64/776,118.36 = 307,784.56/x
  3. Step 3: Cross multiply
    562,422.64x = 776,118.36 × 307,784.56
  4. Step 4: Simplify right side
    562,422.64x = 238,877,247,940.52
  5. Step 5: Solve for x
    x = 238,877,247,940.52/562,422.64
  6. Step 6: Final answer
    x = 424,729.08

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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.