Home / 1,426,386.63-1,968,461.13-781,808.46

Finding the Fourth Proportional to 1,426,386.63, 1,968,461.13 and 781,808.46

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Solution

The fourth proportional to 1,426,386.63, 1,968,461.13 and 781,808.46 is: 1,078,921.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,426,386.63 : 1,968,461.13 = 781,808.46 : x
  2. Step 2: Convert to fraction form
    1,426,386.63/1,968,461.13 = 781,808.46/x
  3. Step 3: Cross multiply
    1,426,386.63x = 1,968,461.13 × 781,808.46
  4. Step 4: Simplify right side
    1,426,386.63x = 1,538,959,564,615.16
  5. Step 5: Solve for x
    x = 1,538,959,564,615.16/1,426,386.63
  6. Step 6: Final answer
    x = 1,078,921.75

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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.