Home / 1,152,334.32-1,590,326.91-636,180.72

Finding the Fourth Proportional to 1,152,334.32, 1,590,326.91 and 636,180.72

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Solution

The fourth proportional to 1,152,334.32, 1,590,326.91 and 636,180.72 is: 877,987.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,152,334.32 : 1,590,326.91 = 636,180.72 : x
  2. Step 2: Convert to fraction form
    1,152,334.32/1,590,326.91 = 636,180.72/x
  3. Step 3: Cross multiply
    1,152,334.32x = 1,590,326.91 × 636,180.72
  4. Step 4: Simplify right side
    1,152,334.32x = 1,011,735,318,639.18
  5. Step 5: Solve for x
    x = 1,011,735,318,639.18/1,152,334.32
  6. Step 6: Final answer
    x = 877,987.66

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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.