Home / 1,587,176.64-2,190,319.56-862,038.51

Finding the Fourth Proportional to 1,587,176.64, 2,190,319.56 and 862,038.51

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Solution

The fourth proportional to 1,587,176.64, 2,190,319.56 and 862,038.51 is: 1,189,621.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,587,176.64 : 2,190,319.56 = 862,038.51 : x
  2. Step 2: Convert to fraction form
    1,587,176.64/2,190,319.56 = 862,038.51/x
  3. Step 3: Cross multiply
    1,587,176.64x = 2,190,319.56 × 862,038.51
  4. Step 4: Simplify right side
    1,587,176.64x = 1,888,139,809,926.26
  5. Step 5: Solve for x
    x = 1,888,139,809,926.26/1,587,176.64
  6. Step 6: Final answer
    x = 1,189,621.72

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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.