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Finding the Fourth Proportional to 578,138.04, 866,084.94 and 426,058.92

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Solution

The fourth proportional to 578,138.04, 866,084.94 and 426,058.92 is: 638,261.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,138.04 : 866,084.94 = 426,058.92 : x
  2. Step 2: Convert to fraction form
    578,138.04/866,084.94 = 426,058.92/x
  3. Step 3: Cross multiply
    578,138.04x = 866,084.94 × 426,058.92
  4. Step 4: Simplify right side
    578,138.04x = 369,003,214,164.67
  5. Step 5: Solve for x
    x = 369,003,214,164.67/578,138.04
  6. Step 6: Final answer
    x = 638,261.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.