Home / 1,186,581.15-1,637,482.50-642,715.29

Finding the Fourth Proportional to 1,186,581.15, 1,637,482.50 and 642,715.29

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Solution

The fourth proportional to 1,186,581.15, 1,637,482.50 and 642,715.29 is: 886,947.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,186,581.15 : 1,637,482.50 = 642,715.29 : x
  2. Step 2: Convert to fraction form
    1,186,581.15/1,637,482.50 = 642,715.29/x
  3. Step 3: Cross multiply
    1,186,581.15x = 1,637,482.50 × 642,715.29
  4. Step 4: Simplify right side
    1,186,581.15x = 1,052,435,039,857.43
  5. Step 5: Solve for x
    x = 1,052,435,039,857.43/1,186,581.15
  6. Step 6: Final answer
    x = 886,947.38

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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.