Home / 1,186,659.86-1,637,598.46-642,795.64

Finding the Fourth Proportional to 1,186,659.86, 1,637,598.46 and 642,795.64

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Solution

The fourth proportional to 1,186,659.86, 1,637,598.46 and 642,795.64 is: 887,062.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,186,659.86 : 1,637,598.46 = 642,795.64 : x
  2. Step 2: Convert to fraction form
    1,186,659.86/1,637,598.46 = 642,795.64/x
  3. Step 3: Cross multiply
    1,186,659.86x = 1,637,598.46 × 642,795.64
  4. Step 4: Simplify right side
    1,186,659.86x = 1,052,641,150,158.71
  5. Step 5: Solve for x
    x = 1,052,641,150,158.71/1,186,659.86
  6. Step 6: Final answer
    x = 887,062.24

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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.