Home / 1,386,266.92-1,913,027.25-774,428.46

Finding the Fourth Proportional to 1,386,266.92, 1,913,027.25 and 774,428.46

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Solution

The fourth proportional to 1,386,266.92, 1,913,027.25 and 774,428.46 is: 1,068,699.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,386,266.92 : 1,913,027.25 = 774,428.46 : x
  2. Step 2: Convert to fraction form
    1,386,266.92/1,913,027.25 = 774,428.46/x
  3. Step 3: Cross multiply
    1,386,266.92x = 1,913,027.25 × 774,428.46
  4. Step 4: Simplify right side
    1,386,266.92x = 1,481,502,742,885.79
  5. Step 5: Solve for x
    x = 1,481,502,742,885.79/1,386,266.92
  6. Step 6: Final answer
    x = 1,068,699.49

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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.