Home / 830,486.88-1,146,071.61-448,513.74

Finding the Fourth Proportional to 830,486.88, 1,146,071.61 and 448,513.74

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Solution

The fourth proportional to 830,486.88, 1,146,071.61 and 448,513.74 is: 618,948.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,486.88 : 1,146,071.61 = 448,513.74 : x
  2. Step 2: Convert to fraction form
    830,486.88/1,146,071.61 = 448,513.74/x
  3. Step 3: Cross multiply
    830,486.88x = 1,146,071.61 × 448,513.74
  4. Step 4: Simplify right side
    830,486.88x = 514,028,864,108.92
  5. Step 5: Solve for x
    x = 514,028,864,108.92/830,486.88
  6. Step 6: Final answer
    x = 618,948.81

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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.