Home / 1,276,178.40-1,914,304.72-477,307.52

Finding the Fourth Proportional to 1,276,178.40, 1,914,304.72 and 477,307.52

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Solution

The fourth proportional to 1,276,178.40, 1,914,304.72 and 477,307.52 is: 715,975.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,276,178.40 : 1,914,304.72 = 477,307.52 : x
  2. Step 2: Convert to fraction form
    1,276,178.40/1,914,304.72 = 477,307.52/x
  3. Step 3: Cross multiply
    1,276,178.40x = 1,914,304.72 × 477,307.52
  4. Step 4: Simplify right side
    1,276,178.40x = 913,712,038,427.49
  5. Step 5: Solve for x
    x = 913,712,038,427.49/1,276,178.40
  6. Step 6: Final answer
    x = 715,975.16

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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.