Home / 708,589,566.30-1,062,884,349.45-643,966,340.70

Finding the Fourth Proportional to 708,589,566.30, 1,062,884,349.45 and 643,966,340.70

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Solution

The fourth proportional to 708,589,566.30, 1,062,884,349.45 and 643,966,340.70 is: 965,949,511.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    708,589,566.30 : 1,062,884,349.45 = 643,966,340.70 : x
  2. Step 2: Convert to fraction form
    708,589,566.30/1,062,884,349.45 = 643,966,340.70/x
  3. Step 3: Cross multiply
    708,589,566.30x = 1,062,884,349.45 × 643,966,340.70
  4. Step 4: Simplify right side
    708,589,566.30x = 684,461,745,102,616,576
  5. Step 5: Solve for x
    x = 684,461,745,102,616,576/708,589,566.30
  6. Step 6: Final answer
    x = 965,949,511.05

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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.