Home / 1,288,272.98-1,931,616-435,264.05

Finding the Fourth Proportional to 1,288,272.98, 1,931,616 and 435,264.05

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Solution

The fourth proportional to 1,288,272.98, 1,931,616 and 435,264.05 is: 652,627.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,288,272.98 : 1,931,616 = 435,264.05 : x
  2. Step 2: Convert to fraction form
    1,288,272.98/1,931,616 = 435,264.05/x
  3. Step 3: Cross multiply
    1,288,272.98x = 1,931,616 × 435,264.05
  4. Step 4: Simplify right side
    1,288,272.98x = 840,762,993,546.72
  5. Step 5: Solve for x
    x = 840,762,993,546.72/1,288,272.98
  6. Step 6: Final answer
    x = 652,627.98

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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.