Home / 1,421,026.80-2,130,762.60-578,626.80

Finding the Fourth Proportional to 1,421,026.80, 2,130,762.60 and 578,626.80

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Solution

The fourth proportional to 1,421,026.80, 2,130,762.60 and 578,626.80 is: 867,623.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,421,026.80 : 2,130,762.60 = 578,626.80 : x
  2. Step 2: Convert to fraction form
    1,421,026.80/2,130,762.60 = 578,626.80/x
  3. Step 3: Cross multiply
    1,421,026.80x = 2,130,762.60 × 578,626.80
  4. Step 4: Simplify right side
    1,421,026.80x = 1,232,916,344,797.68
  5. Step 5: Solve for x
    x = 1,232,916,344,797.68/1,421,026.80
  6. Step 6: Final answer
    x = 867,623.57

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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.