Home / 745,761.88-1,118,276.70-319,237.48

Finding the Fourth Proportional to 745,761.88, 1,118,276.70 and 319,237.48

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Solution

The fourth proportional to 745,761.88, 1,118,276.70 and 319,237.48 is: 478,699.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,761.88 : 1,118,276.70 = 319,237.48 : x
  2. Step 2: Convert to fraction form
    745,761.88/1,118,276.70 = 319,237.48/x
  3. Step 3: Cross multiply
    745,761.88x = 1,118,276.70 × 319,237.48
  4. Step 4: Simplify right side
    745,761.88x = 356,995,835,650.72
  5. Step 5: Solve for x
    x = 356,995,835,650.72/745,761.88
  6. Step 6: Final answer
    x = 478,699.50

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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.