Home / 1,431,088.85-1,974,925.65-819,239.15

Finding the Fourth Proportional to 1,431,088.85, 1,974,925.65 and 819,239.15

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Solution

The fourth proportional to 1,431,088.85, 1,974,925.65 and 819,239.15 is: 1,130,563.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,431,088.85 : 1,974,925.65 = 819,239.15 : x
  2. Step 2: Convert to fraction form
    1,431,088.85/1,974,925.65 = 819,239.15/x
  3. Step 3: Cross multiply
    1,431,088.85x = 1,974,925.65 × 819,239.15
  4. Step 4: Simplify right side
    1,431,088.85x = 1,617,936,400,944.57
  5. Step 5: Solve for x
    x = 1,617,936,400,944.57/1,431,088.85
  6. Step 6: Final answer
    x = 1,130,563.21

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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.