Home / 688,231.80-1,032,002.10-313,831.80

Finding the Fourth Proportional to 688,231.80, 1,032,002.10 and 313,831.80

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Solution

The fourth proportional to 688,231.80, 1,032,002.10 and 313,831.80 is: 470,590.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,231.80 : 1,032,002.10 = 313,831.80 : x
  2. Step 2: Convert to fraction form
    688,231.80/1,032,002.10 = 313,831.80/x
  3. Step 3: Cross multiply
    688,231.80x = 1,032,002.10 × 313,831.80
  4. Step 4: Simplify right side
    688,231.80x = 323,875,076,646.78
  5. Step 5: Solve for x
    x = 323,875,076,646.78/688,231.80
  6. Step 6: Final answer
    x = 470,590.11

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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.