Home / 1,431,875.81-2,151,750.35-1,338,250.34

Finding the Fourth Proportional to 1,431,875.81, 2,151,750.35 and 1,338,250.34

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Solution

The fourth proportional to 1,431,875.81, 2,151,750.35 and 1,338,250.34 is: 2,011,054.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,431,875.81 : 2,151,750.35 = 1,338,250.34 : x
  2. Step 2: Convert to fraction form
    1,431,875.81/2,151,750.35 = 1,338,250.34/x
  3. Step 3: Cross multiply
    1,431,875.81x = 2,151,750.35 × 1,338,250.34
  4. Step 4: Simplify right side
    1,431,875.81x = 2,879,580,620,032.62
  5. Step 5: Solve for x
    x = 2,879,580,620,032.62/1,431,875.81
  6. Step 6: Final answer
    x = 2,011,054.74

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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.