Home / 1,408,009.04-1,943,050.68-763,428.20

Finding the Fourth Proportional to 1,408,009.04, 1,943,050.68 and 763,428.20

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Solution

The fourth proportional to 1,408,009.04, 1,943,050.68 and 763,428.20 is: 1,053,529.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,408,009.04 : 1,943,050.68 = 763,428.20 : x
  2. Step 2: Convert to fraction form
    1,408,009.04/1,943,050.68 = 763,428.20/x
  3. Step 3: Cross multiply
    1,408,009.04x = 1,943,050.68 × 763,428.20
  4. Step 4: Simplify right side
    1,408,009.04x = 1,483,379,683,141.18
  5. Step 5: Solve for x
    x = 1,483,379,683,141.18/1,408,009.04
  6. Step 6: Final answer
    x = 1,053,529.94

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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.