Home / 1,053,289.95-1,455,028.16-838,154.76

Finding the Fourth Proportional to 1,053,289.95, 1,455,028.16 and 838,154.76

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Solution

The fourth proportional to 1,053,289.95, 1,455,028.16 and 838,154.76 is: 1,157,837.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,053,289.95 : 1,455,028.16 = 838,154.76 : x
  2. Step 2: Convert to fraction form
    1,053,289.95/1,455,028.16 = 838,154.76/x
  3. Step 3: Cross multiply
    1,053,289.95x = 1,455,028.16 × 838,154.76
  4. Step 4: Simplify right side
    1,053,289.95x = 1,219,538,773,305.53
  5. Step 5: Solve for x
    x = 1,219,538,773,305.53/1,053,289.95
  6. Step 6: Final answer
    x = 1,157,837.67

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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.