Home / 849,483.68-1,172,117.54-487,021.23

Finding the Fourth Proportional to 849,483.68, 1,172,117.54 and 487,021.23

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Solution

The fourth proportional to 849,483.68, 1,172,117.54 and 487,021.23 is: 671,991.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    849,483.68 : 1,172,117.54 = 487,021.23 : x
  2. Step 2: Convert to fraction form
    849,483.68/1,172,117.54 = 487,021.23/x
  3. Step 3: Cross multiply
    849,483.68x = 1,172,117.54 × 487,021.23
  4. Step 4: Simplify right side
    849,483.68x = 570,846,123,600.27
  5. Step 5: Solve for x
    x = 570,846,123,600.27/849,483.68
  6. Step 6: Final answer
    x = 671,991.87

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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.