Home / 849,427.66-1,172,258.36-486,911.76

Finding the Fourth Proportional to 849,427.66, 1,172,258.36 and 486,911.76

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Solution

The fourth proportional to 849,427.66, 1,172,258.36 and 486,911.76 is: 671,965.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    849,427.66 : 1,172,258.36 = 486,911.76 : x
  2. Step 2: Convert to fraction form
    849,427.66/1,172,258.36 = 486,911.76/x
  3. Step 3: Cross multiply
    849,427.66x = 1,172,258.36 × 486,911.76
  4. Step 4: Simplify right side
    849,427.66x = 570,786,381,242.31
  5. Step 5: Solve for x
    x = 570,786,381,242.31/849,427.66
  6. Step 6: Final answer
    x = 671,965.85

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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.