Home / 644,580.29-888,911.07-423,427.13

Finding the Fourth Proportional to 644,580.29, 888,911.07 and 423,427.13

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Solution

The fourth proportional to 644,580.29, 888,911.07 and 423,427.13 is: 583,928.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,580.29 : 888,911.07 = 423,427.13 : x
  2. Step 2: Convert to fraction form
    644,580.29/888,911.07 = 423,427.13/x
  3. Step 3: Cross multiply
    644,580.29x = 888,911.07 × 423,427.13
  4. Step 4: Simplify right side
    644,580.29x = 376,389,064,845.79
  5. Step 5: Solve for x
    x = 376,389,064,845.79/644,580.29
  6. Step 6: Final answer
    x = 583,928.91

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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.