Home / 551,826.47-761,510.36-310,105.56

Finding the Fourth Proportional to 551,826.47, 761,510.36 and 310,105.56

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Solution

The fourth proportional to 551,826.47, 761,510.36 and 310,105.56 is: 427,939.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,826.47 : 761,510.36 = 310,105.56 : x
  2. Step 2: Convert to fraction form
    551,826.47/761,510.36 = 310,105.56/x
  3. Step 3: Cross multiply
    551,826.47x = 761,510.36 × 310,105.56
  4. Step 4: Simplify right side
    551,826.47x = 236,148,600,264.53
  5. Step 5: Solve for x
    x = 236,148,600,264.53/551,826.47
  6. Step 6: Final answer
    x = 427,939.96

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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.