Home / 786,356.17-1,177,642.42-448,372.16

Finding the Fourth Proportional to 786,356.17, 1,177,642.42 and 448,372.16

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Solution

The fourth proportional to 786,356.17, 1,177,642.42 and 448,372.16 is: 671,479.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,356.17 : 1,177,642.42 = 448,372.16 : x
  2. Step 2: Convert to fraction form
    786,356.17/1,177,642.42 = 448,372.16/x
  3. Step 3: Cross multiply
    786,356.17x = 1,177,642.42 × 448,372.16
  4. Step 4: Simplify right side
    786,356.17x = 528,022,077,386.20
  5. Step 5: Solve for x
    x = 528,022,077,386.20/786,356.17
  6. Step 6: Final answer
    x = 671,479.54

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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.