Home / 688,303.86-1,032,455.79-215,026.53

Finding the Fourth Proportional to 688,303.86, 1,032,455.79 and 215,026.53

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Solution

The fourth proportional to 688,303.86, 1,032,455.79 and 215,026.53 is: 322,539.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,303.86 : 1,032,455.79 = 215,026.53 : x
  2. Step 2: Convert to fraction form
    688,303.86/1,032,455.79 = 215,026.53/x
  3. Step 3: Cross multiply
    688,303.86x = 1,032,455.79 × 215,026.53
  4. Step 4: Simplify right side
    688,303.86x = 222,005,385,902.11
  5. Step 5: Solve for x
    x = 222,005,385,902.11/688,303.86
  6. Step 6: Final answer
    x = 322,539.80

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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.