Home / 1,212,419.12-1,818,701.58-370,978.16

Finding the Fourth Proportional to 1,212,419.12, 1,818,701.58 and 370,978.16

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Solution

The fourth proportional to 1,212,419.12, 1,818,701.58 and 370,978.16 is: 556,489.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,212,419.12 : 1,818,701.58 = 370,978.16 : x
  2. Step 2: Convert to fraction form
    1,212,419.12/1,818,701.58 = 370,978.16/x
  3. Step 3: Cross multiply
    1,212,419.12x = 1,818,701.58 × 370,978.16
  4. Step 4: Simplify right side
    1,212,419.12x = 674,698,565,737.49
  5. Step 5: Solve for x
    x = 674,698,565,737.49/1,212,419.12
  6. Step 6: Final answer
    x = 556,489.55

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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.