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Finding the Fourth Proportional to 610,700.58, 842,414.18 and 380,858.93

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Solution

The fourth proportional to 610,700.58, 842,414.18 and 380,858.93 is: 525,365.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,700.58 : 842,414.18 = 380,858.93 : x
  2. Step 2: Convert to fraction form
    610,700.58/842,414.18 = 380,858.93/x
  3. Step 3: Cross multiply
    610,700.58x = 842,414.18 × 380,858.93
  4. Step 4: Simplify right side
    610,700.58x = 320,840,960,254.32
  5. Step 5: Solve for x
    x = 320,840,960,254.32/610,700.58
  6. Step 6: Final answer
    x = 525,365.41

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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.