Home / 1,423,215.31-1,964,059.27-778,646.27

Finding the Fourth Proportional to 1,423,215.31, 1,964,059.27 and 778,646.27

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Solution

The fourth proportional to 1,423,215.31, 1,964,059.27 and 778,646.27 is: 1,074,543.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,423,215.31 : 1,964,059.27 = 778,646.27 : x
  2. Step 2: Convert to fraction form
    1,423,215.31/1,964,059.27 = 778,646.27/x
  3. Step 3: Cross multiply
    1,423,215.31x = 1,964,059.27 × 778,646.27
  4. Step 4: Simplify right side
    1,423,215.31x = 1,529,307,418,750.06
  5. Step 5: Solve for x
    x = 1,529,307,418,750.06/1,423,215.31
  6. Step 6: Final answer
    x = 1,074,543.96

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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.