Home / 1,256,643.20-1,884,878.40-403,702.40

Finding the Fourth Proportional to 1,256,643.20, 1,884,878.40 and 403,702.40

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Solution

The fourth proportional to 1,256,643.20, 1,884,878.40 and 403,702.40 is: 605,525.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,256,643.20 : 1,884,878.40 = 403,702.40 : x
  2. Step 2: Convert to fraction form
    1,256,643.20/1,884,878.40 = 403,702.40/x
  3. Step 3: Cross multiply
    1,256,643.20x = 1,884,878.40 × 403,702.40
  4. Step 4: Simplify right side
    1,256,643.20x = 760,929,933,788.16
  5. Step 5: Solve for x
    x = 760,929,933,788.16/1,256,643.20
  6. Step 6: Final answer
    x = 605,525.84

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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.