Home / 830,700.36-1,146,749.20-486,488.43

Finding the Fourth Proportional to 830,700.36, 1,146,749.20 and 486,488.43

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Solution

The fourth proportional to 830,700.36, 1,146,749.20 and 486,488.43 is: 671,578.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,700.36 : 1,146,749.20 = 486,488.43 : x
  2. Step 2: Convert to fraction form
    830,700.36/1,146,749.20 = 486,488.43/x
  3. Step 3: Cross multiply
    830,700.36x = 1,146,749.20 × 486,488.43
  4. Step 4: Simplify right side
    830,700.36x = 557,880,216,695.54
  5. Step 5: Solve for x
    x = 557,880,216,695.54/830,700.36
  6. Step 6: Final answer
    x = 671,578.16

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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.