Home / 1,912,507.61-2,639,307.80-1,041,390.05

Finding the Fourth Proportional to 1,912,507.61, 2,639,307.80 and 1,041,390.05

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Solution

The fourth proportional to 1,912,507.61, 2,639,307.80 and 1,041,390.05 is: 1,437,144.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,912,507.61 : 2,639,307.80 = 1,041,390.05 : x
  2. Step 2: Convert to fraction form
    1,912,507.61/2,639,307.80 = 1,041,390.05/x
  3. Step 3: Cross multiply
    1,912,507.61x = 2,639,307.80 × 1,041,390.05
  4. Step 4: Simplify right side
    1,912,507.61x = 2,748,548,881,807.39
  5. Step 5: Solve for x
    x = 2,748,548,881,807.39/1,912,507.61
  6. Step 6: Final answer
    x = 1,437,144.02

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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.