Home / 729,144.18-1,006,430.13-423,289.26

Finding the Fourth Proportional to 729,144.18, 1,006,430.13 and 423,289.26

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Solution

The fourth proportional to 729,144.18, 1,006,430.13 and 423,289.26 is: 584,261.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    729,144.18 : 1,006,430.13 = 423,289.26 : x
  2. Step 2: Convert to fraction form
    729,144.18/1,006,430.13 = 423,289.26/x
  3. Step 3: Cross multiply
    729,144.18x = 1,006,430.13 × 423,289.26
  4. Step 4: Simplify right side
    729,144.18x = 426,011,064,969.40
  5. Step 5: Solve for x
    x = 426,011,064,969.40/729,144.18
  6. Step 6: Final answer
    x = 584,261.76

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Double scale
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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.