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Finding the Fourth Proportional to 610,701.58, 842,415.55 and 380,859.93

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Solution

The fourth proportional to 610,701.58, 842,415.55 and 380,859.93 is: 525,366.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,701.58 : 842,415.55 = 380,859.93 : x
  2. Step 2: Convert to fraction form
    610,701.58/842,415.55 = 380,859.93/x
  3. Step 3: Cross multiply
    610,701.58x = 842,415.55 × 380,859.93
  4. Step 4: Simplify right side
    610,701.58x = 320,842,327,403.91
  5. Step 5: Solve for x
    x = 320,842,327,403.91/610,701.58
  6. Step 6: Final answer
    x = 525,366.79

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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.