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Finding the Fourth Proportional to 560,143.35, 772,967.48 and 318,392.37

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Solution

The fourth proportional to 560,143.35, 772,967.48 and 318,392.37 is: 439,364.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,143.35 : 772,967.48 = 318,392.37 : x
  2. Step 2: Convert to fraction form
    560,143.35/772,967.48 = 318,392.37/x
  3. Step 3: Cross multiply
    560,143.35x = 772,967.48 × 318,392.37
  4. Step 4: Simplify right side
    560,143.35x = 246,106,946,298.17
  5. Step 5: Solve for x
    x = 246,106,946,298.17/560,143.35
  6. Step 6: Final answer
    x = 439,364.22

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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.