Home / 1,426,386.40-1,968,460.84-781,808.25

Finding the Fourth Proportional to 1,426,386.40, 1,968,460.84 and 781,808.25

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Solution

The fourth proportional to 1,426,386.40, 1,968,460.84 and 781,808.25 is: 1,078,921.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,426,386.40 : 1,968,460.84 = 781,808.25 : x
  2. Step 2: Convert to fraction form
    1,426,386.40/1,968,460.84 = 781,808.25/x
  3. Step 3: Cross multiply
    1,426,386.40x = 1,968,460.84 × 781,808.25
  4. Step 4: Simplify right side
    1,426,386.40x = 1,538,958,924,513.93
  5. Step 5: Solve for x
    x = 1,538,958,924,513.93/1,426,386.40
  6. Step 6: Final answer
    x = 1,078,921.48

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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.