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Finding the Fourth Proportional to 698,752.85, 964,313.13 and 392,925.50

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Solution

The fourth proportional to 698,752.85, 964,313.13 and 392,925.50 is: 542,256.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    698,752.85 : 964,313.13 = 392,925.50 : x
  2. Step 2: Convert to fraction form
    698,752.85/964,313.13 = 392,925.50/x
  3. Step 3: Cross multiply
    698,752.85x = 964,313.13 × 392,925.50
  4. Step 4: Simplify right side
    698,752.85x = 378,903,219,029.89
  5. Step 5: Solve for x
    x = 378,903,219,029.89/698,752.85
  6. Step 6: Final answer
    x = 542,256.42

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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.