Home / 479,829.02-662,379.57-316,581.61

Finding the Fourth Proportional to 479,829.02, 662,379.57 and 316,581.61

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Solution

The fourth proportional to 479,829.02, 662,379.57 and 316,581.61 is: 437,024.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,829.02 : 662,379.57 = 316,581.61 : x
  2. Step 2: Convert to fraction form
    479,829.02/662,379.57 = 316,581.61/x
  3. Step 3: Cross multiply
    479,829.02x = 662,379.57 × 316,581.61
  4. Step 4: Simplify right side
    479,829.02x = 209,697,186,501.90
  5. Step 5: Solve for x
    x = 209,697,186,501.90/479,829.02
  6. Step 6: Final answer
    x = 437,024.81

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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.