Home / 830,416.50-1,145,974.79-448,443.29

Finding the Fourth Proportional to 830,416.50, 1,145,974.79 and 448,443.29

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Solution

The fourth proportional to 830,416.50, 1,145,974.79 and 448,443.29 is: 618,851.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,416.50 : 1,145,974.79 = 448,443.29 : x
  2. Step 2: Convert to fraction form
    830,416.50/1,145,974.79 = 448,443.29/x
  3. Step 3: Cross multiply
    830,416.50x = 1,145,974.79 × 448,443.29
  4. Step 4: Simplify right side
    830,416.50x = 513,904,697,112.57
  5. Step 5: Solve for x
    x = 513,904,697,112.57/830,416.50
  6. Step 6: Final answer
    x = 618,851.74

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1.5x scale

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.