Home / 776,934,698.40-1,165,215,423.60-448,700,407.20

Finding the Fourth Proportional to 776,934,698.40, 1,165,215,423.60 and 448,700,407.20

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Solution

The fourth proportional to 776,934,698.40, 1,165,215,423.60 and 448,700,407.20 is: 672,942,830.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    776,934,698.40 : 1,165,215,423.60 = 448,700,407.20 : x
  2. Step 2: Convert to fraction form
    776,934,698.40/1,165,215,423.60 = 448,700,407.20/x
  3. Step 3: Cross multiply
    776,934,698.40x = 1,165,215,423.60 × 448,700,407.20
  4. Step 4: Simplify right side
    776,934,698.40x = 522,832,635,045,040,448
  5. Step 5: Solve for x
    x = 522,832,635,045,040,448/776,934,698.40
  6. Step 6: Final answer
    x = 672,942,830.49

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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.