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Finding the Fourth Proportional to 601,780.54, 830,542.30 and 372,411.70

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Solution

The fourth proportional to 601,780.54, 830,542.30 and 372,411.70 is: 513,980.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    601,780.54 : 830,542.30 = 372,411.70 : x
  2. Step 2: Convert to fraction form
    601,780.54/830,542.30 = 372,411.70/x
  3. Step 3: Cross multiply
    601,780.54x = 830,542.30 × 372,411.70
  4. Step 4: Simplify right side
    601,780.54x = 309,303,668,669.72
  5. Step 5: Solve for x
    x = 309,303,668,669.72/601,780.54
  6. Step 6: Final answer
    x = 513,980.84

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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.