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Finding the Fourth Proportional to 567,989.64, 783,828.36 and 313,340.76

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Solution

The fourth proportional to 567,989.64, 783,828.36 and 313,340.76 is: 432,411.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,989.64 : 783,828.36 = 313,340.76 : x
  2. Step 2: Convert to fraction form
    567,989.64/783,828.36 = 313,340.76/x
  3. Step 3: Cross multiply
    567,989.64x = 783,828.36 × 313,340.76
  4. Step 4: Simplify right side
    567,989.64x = 245,605,374,031.95
  5. Step 5: Solve for x
    x = 245,605,374,031.95/567,989.64
  6. Step 6: Final answer
    x = 432,411.71

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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.