Home / 753,085.72-1,038,998.51-481,312.70

Finding the Fourth Proportional to 753,085.72, 1,038,998.51 and 481,312.70

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Solution

The fourth proportional to 753,085.72, 1,038,998.51 and 481,312.70 is: 664,045.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    753,085.72 : 1,038,998.51 = 481,312.70 : x
  2. Step 2: Convert to fraction form
    753,085.72/1,038,998.51 = 481,312.70/x
  3. Step 3: Cross multiply
    753,085.72x = 1,038,998.51 × 481,312.70
  4. Step 4: Simplify right side
    753,085.72x = 500,083,176,243.69
  5. Step 5: Solve for x
    x = 500,083,176,243.69/753,085.72
  6. Step 6: Final answer
    x = 664,045.49

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1.5x scale

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.