Home / 755,319.86-1,042,341.45-415,785.50

Finding the Fourth Proportional to 755,319.86, 1,042,341.45 and 415,785.50

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Solution

The fourth proportional to 755,319.86, 1,042,341.45 and 415,785.50 is: 573,784.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    755,319.86 : 1,042,341.45 = 415,785.50 : x
  2. Step 2: Convert to fraction form
    755,319.86/1,042,341.45 = 415,785.50/x
  3. Step 3: Cross multiply
    755,319.86x = 1,042,341.45 × 415,785.50
  4. Step 4: Simplify right side
    755,319.86x = 433,390,460,958.98
  5. Step 5: Solve for x
    x = 433,390,460,958.98/755,319.86
  6. Step 6: Final answer
    x = 573,784.01

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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.