Home / 930,643.30-1,284,088.53-543,282.91

Finding the Fourth Proportional to 930,643.30, 1,284,088.53 and 543,282.91

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Solution

The fourth proportional to 930,643.30, 1,284,088.53 and 543,282.91 is: 749,614.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    930,643.30 : 1,284,088.53 = 543,282.91 : x
  2. Step 2: Convert to fraction form
    930,643.30/1,284,088.53 = 543,282.91/x
  3. Step 3: Cross multiply
    930,643.30x = 1,284,088.53 × 543,282.91
  4. Step 4: Simplify right side
    930,643.30x = 697,623,349,441.85
  5. Step 5: Solve for x
    x = 697,623,349,441.85/930,643.30
  6. Step 6: Final answer
    x = 749,614.11

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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.