Home / 1,503,385.11-2,255,409.36-438,510.51

Finding the Fourth Proportional to 1,503,385.11, 2,255,409.36 and 438,510.51

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Solution

The fourth proportional to 1,503,385.11, 2,255,409.36 and 438,510.51 is: 657,862.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,503,385.11 : 2,255,409.36 = 438,510.51 : x
  2. Step 2: Convert to fraction form
    1,503,385.11/2,255,409.36 = 438,510.51/x
  3. Step 3: Cross multiply
    1,503,385.11x = 2,255,409.36 × 438,510.51
  4. Step 4: Simplify right side
    1,503,385.11x = 989,020,708,712.37
  5. Step 5: Solve for x
    x = 989,020,708,712.37/1,503,385.11
  6. Step 6: Final answer
    x = 657,862.51

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Double scale
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Similar ratio
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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.