Home / 1,605,113.92-2,408,649.11-645,389.57

Finding the Fourth Proportional to 1,605,113.92, 2,408,649.11 and 645,389.57

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Solution

The fourth proportional to 1,605,113.92, 2,408,649.11 and 645,389.57 is: 968,477.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,605,113.92 : 2,408,649.11 = 645,389.57 : x
  2. Step 2: Convert to fraction form
    1,605,113.92/2,408,649.11 = 645,389.57/x
  3. Step 3: Cross multiply
    1,605,113.92x = 2,408,649.11 × 645,389.57
  4. Step 4: Simplify right side
    1,605,113.92x = 1,554,517,018,598.67
  5. Step 5: Solve for x
    x = 1,554,517,018,598.67/1,605,113.92
  6. Step 6: Final answer
    x = 968,477.69

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.