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Finding the Fourth Proportional to 688,393.46, 949,717.50 and 507,535.31

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Solution

The fourth proportional to 688,393.46, 949,717.50 and 507,535.31 is: 700,203.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,393.46 : 949,717.50 = 507,535.31 : x
  2. Step 2: Convert to fraction form
    688,393.46/949,717.50 = 507,535.31/x
  3. Step 3: Cross multiply
    688,393.46x = 949,717.50 × 507,535.31
  4. Step 4: Simplify right side
    688,393.46x = 482,015,165,774.93
  5. Step 5: Solve for x
    x = 482,015,165,774.93/688,393.46
  6. Step 6: Final answer
    x = 700,203.00

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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.