Home / 953,478-1,429,913.28-313,635.36

Finding the Fourth Proportional to 953,478, 1,429,913.28 and 313,635.36

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Solution

The fourth proportional to 953,478, 1,429,913.28 and 313,635.36 is: 470,353.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    953,478 : 1,429,913.28 = 313,635.36 : x
  2. Step 2: Convert to fraction form
    953,478/1,429,913.28 = 313,635.36/x
  3. Step 3: Cross multiply
    953,478x = 1,429,913.28 × 313,635.36
  4. Step 4: Simplify right side
    953,478x = 448,471,366,341.58
  5. Step 5: Solve for x
    x = 448,471,366,341.58/953,478
  6. Step 6: Final answer
    x = 470,353.13

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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.