Home / 649,384.40-895,570.20-407,689.52

Finding the Fourth Proportional to 649,384.40, 895,570.20 and 407,689.52

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Solution

The fourth proportional to 649,384.40, 895,570.20 and 407,689.52 is: 562,247.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,384.40 : 895,570.20 = 407,689.52 : x
  2. Step 2: Convert to fraction form
    649,384.40/895,570.20 = 407,689.52/x
  3. Step 3: Cross multiply
    649,384.40x = 895,570.20 × 407,689.52
  4. Step 4: Simplify right side
    649,384.40x = 365,114,584,964.30
  5. Step 5: Solve for x
    x = 365,114,584,964.30/649,384.40
  6. Step 6: Final answer
    x = 562,247.24

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.