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Finding the Fourth Proportional to 438,240.54, 600,386.67 and 421,852.89

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Solution

The fourth proportional to 438,240.54, 600,386.67 and 421,852.89 is: 577,935.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,240.54 : 600,386.67 = 421,852.89 : x
  2. Step 2: Convert to fraction form
    438,240.54/600,386.67 = 421,852.89/x
  3. Step 3: Cross multiply
    438,240.54x = 600,386.67 × 421,852.89
  4. Step 4: Simplify right side
    438,240.54x = 253,274,851,856.98
  5. Step 5: Solve for x
    x = 253,274,851,856.98/438,240.54
  6. Step 6: Final answer
    x = 577,935.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.