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Finding the Fourth Proportional to 700,707.50, 966,976.28 and 378,417.56

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Solution

The fourth proportional to 700,707.50, 966,976.28 and 378,417.56 is: 522,216.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    700,707.50 : 966,976.28 = 378,417.56 : x
  2. Step 2: Convert to fraction form
    700,707.50/966,976.28 = 378,417.56/x
  3. Step 3: Cross multiply
    700,707.50x = 966,976.28 × 378,417.56
  4. Step 4: Simplify right side
    700,707.50x = 365,920,804,455.48
  5. Step 5: Solve for x
    x = 365,920,804,455.48/700,707.50
  6. Step 6: Final answer
    x = 522,216.19

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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.