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Finding the Fourth Proportional to 720,454.11, 994,321.71 and 696,795.32

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Solution

The fourth proportional to 720,454.11, 994,321.71 and 696,795.32 is: 961,669.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    720,454.11 : 994,321.71 = 696,795.32 : x
  2. Step 2: Convert to fraction form
    720,454.11/994,321.71 = 696,795.32/x
  3. Step 3: Cross multiply
    720,454.11x = 994,321.71 × 696,795.32
  4. Step 4: Simplify right side
    720,454.11x = 692,838,716,588.20
  5. Step 5: Solve for x
    x = 692,838,716,588.20/720,454.11
  6. Step 6: Final answer
    x = 961,669.47

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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.