Home / 1,587,411.47-2,190,668.58-862,300.68

Finding the Fourth Proportional to 1,587,411.47, 2,190,668.58 and 862,300.68

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Solution

The fourth proportional to 1,587,411.47, 2,190,668.58 and 862,300.68 is: 1,189,997.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,587,411.47 : 2,190,668.58 = 862,300.68 : x
  2. Step 2: Convert to fraction form
    1,587,411.47/2,190,668.58 = 862,300.68/x
  3. Step 3: Cross multiply
    1,587,411.47x = 2,190,668.58 × 862,300.68
  4. Step 4: Simplify right side
    1,587,411.47x = 1,889,015,002,955.01
  5. Step 5: Solve for x
    x = 1,889,015,002,955.01/1,587,411.47
  6. Step 6: Final answer
    x = 1,189,997.08

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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.