Home / 1,419,970.40-2,128,918.80-578,088.80

Finding the Fourth Proportional to 1,419,970.40, 2,128,918.80 and 578,088.80

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Solution

The fourth proportional to 1,419,970.40, 2,128,918.80 and 578,088.80 is: 866,711.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,419,970.40 : 2,128,918.80 = 578,088.80 : x
  2. Step 2: Convert to fraction form
    1,419,970.40/2,128,918.80 = 578,088.80/x
  3. Step 3: Cross multiply
    1,419,970.40x = 2,128,918.80 × 578,088.80
  4. Step 4: Simplify right side
    1,419,970.40x = 1,230,704,114,389.44
  5. Step 5: Solve for x
    x = 1,230,704,114,389.44/1,419,970.40
  6. Step 6: Final answer
    x = 866,711.10

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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.