Home / 1,423,681.40-1,964,680.36-779,101.86

Finding the Fourth Proportional to 1,423,681.40, 1,964,680.36 and 779,101.86

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Solution

The fourth proportional to 1,423,681.40, 1,964,680.36 and 779,101.86 is: 1,075,160.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,423,681.40 : 1,964,680.36 = 779,101.86 : x
  2. Step 2: Convert to fraction form
    1,423,681.40/1,964,680.36 = 779,101.86/x
  3. Step 3: Cross multiply
    1,423,681.40x = 1,964,680.36 × 779,101.86
  4. Step 4: Simplify right side
    1,423,681.40x = 1,530,686,122,781.47
  5. Step 5: Solve for x
    x = 1,530,686,122,781.47/1,423,681.40
  6. Step 6: Final answer
    x = 1,075,160.58

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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.