Home / 678,430.71-1,017,673.74-173,004.78

Finding the Fourth Proportional to 678,430.71, 1,017,673.74 and 173,004.78

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Solution

The fourth proportional to 678,430.71, 1,017,673.74 and 173,004.78 is: 259,514.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,430.71 : 1,017,673.74 = 173,004.78 : x
  2. Step 2: Convert to fraction form
    678,430.71/1,017,673.74 = 173,004.78/x
  3. Step 3: Cross multiply
    678,430.71x = 1,017,673.74 × 173,004.78
  4. Step 4: Simplify right side
    678,430.71x = 176,062,421,500.48
  5. Step 5: Solve for x
    x = 176,062,421,500.48/678,430.71
  6. Step 6: Final answer
    x = 259,514.23

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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.