Home / 1,370,019.84-1,890,624.64-766,407.84

Finding the Fourth Proportional to 1,370,019.84, 1,890,624.64 and 766,407.84

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Solution

The fourth proportional to 1,370,019.84, 1,890,624.64 and 766,407.84 is: 1,057,641.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,370,019.84 : 1,890,624.64 = 766,407.84 : x
  2. Step 2: Convert to fraction form
    1,370,019.84/1,890,624.64 = 766,407.84/x
  3. Step 3: Cross multiply
    1,370,019.84x = 1,890,624.64 × 766,407.84
  4. Step 4: Simplify right side
    1,370,019.84x = 1,448,989,546,593.18
  5. Step 5: Solve for x
    x = 1,448,989,546,593.18/1,370,019.84
  6. Step 6: Final answer
    x = 1,057,641.29

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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.