Home / 470,170.08-648,758.88-288,823.68

Finding the Fourth Proportional to 470,170.08, 648,758.88 and 288,823.68

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Solution

The fourth proportional to 470,170.08, 648,758.88 and 288,823.68 is: 398,530.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    470,170.08 : 648,758.88 = 288,823.68 : x
  2. Step 2: Convert to fraction form
    470,170.08/648,758.88 = 288,823.68/x
  3. Step 3: Cross multiply
    470,170.08x = 648,758.88 × 288,823.68
  4. Step 4: Simplify right side
    470,170.08x = 187,376,927,154.28
  5. Step 5: Solve for x
    x = 187,376,927,154.28/470,170.08
  6. Step 6: Final answer
    x = 398,530.10

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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.