Home / 648,668.20-973,002.30-424,719.40

Finding the Fourth Proportional to 648,668.20, 973,002.30 and 424,719.40

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Solution

The fourth proportional to 648,668.20, 973,002.30 and 424,719.40 is: 637,079.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,668.20 : 973,002.30 = 424,719.40 : x
  2. Step 2: Convert to fraction form
    648,668.20/973,002.30 = 424,719.40/x
  3. Step 3: Cross multiply
    648,668.20x = 973,002.30 × 424,719.40
  4. Step 4: Simplify right side
    648,668.20x = 413,252,953,054.62
  5. Step 5: Solve for x
    x = 413,252,953,054.62/648,668.20
  6. Step 6: Final answer
    x = 637,079.10

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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.