Home / 630,424.20-945,636.30-314,929.80

Finding the Fourth Proportional to 630,424.20, 945,636.30 and 314,929.80

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Solution

The fourth proportional to 630,424.20, 945,636.30 and 314,929.80 is: 472,394.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,424.20 : 945,636.30 = 314,929.80 : x
  2. Step 2: Convert to fraction form
    630,424.20/945,636.30 = 314,929.80/x
  3. Step 3: Cross multiply
    630,424.20x = 945,636.30 × 314,929.80
  4. Step 4: Simplify right side
    630,424.20x = 297,809,050,831.74
  5. Step 5: Solve for x
    x = 297,809,050,831.74/630,424.20
  6. Step 6: Final answer
    x = 472,394.70

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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.