Home / 948,400.14-1,421,145.90-644,407.14

Finding the Fourth Proportional to 948,400.14, 1,421,145.90 and 644,407.14

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Solution

The fourth proportional to 948,400.14, 1,421,145.90 and 644,407.14 is: 965,622.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    948,400.14 : 1,421,145.90 = 644,407.14 : x
  2. Step 2: Convert to fraction form
    948,400.14/1,421,145.90 = 644,407.14/x
  3. Step 3: Cross multiply
    948,400.14x = 1,421,145.90 × 644,407.14
  4. Step 4: Simplify right side
    948,400.14x = 915,796,564,941.73
  5. Step 5: Solve for x
    x = 915,796,564,941.73/948,400.14
  6. Step 6: Final answer
    x = 965,622.55

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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.