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Finding the Fourth Proportional to 708,604,804.20, 1,062,907,206.30 and 689,472,928.20

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Solution

The fourth proportional to 708,604,804.20, 1,062,907,206.30 and 689,472,928.20 is: 1,034,209,392.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    708,604,804.20 : 1,062,907,206.30 = 689,472,928.20 : x
  2. Step 2: Convert to fraction form
    708,604,804.20/1,062,907,206.30 = 689,472,928.20/x
  3. Step 3: Cross multiply
    708,604,804.20x = 1,062,907,206.30 × 689,472,928.20
  4. Step 4: Simplify right side
    708,604,804.20x = 732,845,743,932,542,464
  5. Step 5: Solve for x
    x = 732,845,743,932,542,464/708,604,804.20
  6. Step 6: Final answer
    x = 1,034,209,392.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.