Home / 1,386,313-1,913,111.94-750,409

Finding the Fourth Proportional to 1,386,313, 1,913,111.94 and 750,409

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Solution

The fourth proportional to 1,386,313, 1,913,111.94 and 750,409 is: 1,035,564.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,386,313 : 1,913,111.94 = 750,409 : x
  2. Step 2: Convert to fraction form
    1,386,313/1,913,111.94 = 750,409/x
  3. Step 3: Cross multiply
    1,386,313x = 1,913,111.94 × 750,409
  4. Step 4: Simplify right side
    1,386,313x = 1,435,616,417,783.46
  5. Step 5: Solve for x
    x = 1,435,616,417,783.46/1,386,313
  6. Step 6: Final answer
    x = 1,035,564.42

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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.