Home / 708,525,688.40-1,062,788,532.60-398,589,297.20

Finding the Fourth Proportional to 708,525,688.40, 1,062,788,532.60 and 398,589,297.20

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Solution

The fourth proportional to 708,525,688.40, 1,062,788,532.60 and 398,589,297.20 is: 597,883,945.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    708,525,688.40 : 1,062,788,532.60 = 398,589,297.20 : x
  2. Step 2: Convert to fraction form
    708,525,688.40/1,062,788,532.60 = 398,589,297.20/x
  3. Step 3: Cross multiply
    708,525,688.40x = 1,062,788,532.60 × 398,589,297.20
  4. Step 4: Simplify right side
    708,525,688.40x = 423,616,134,281,253,312
  5. Step 5: Solve for x
    x = 423,616,134,281,253,312/708,525,688.40
  6. Step 6: Final answer
    x = 597,883,945.80

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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.