Home / 859,345.47-1,185,856.52-477,395.55

Finding the Fourth Proportional to 859,345.47, 1,185,856.52 and 477,395.55

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Solution

The fourth proportional to 859,345.47, 1,185,856.52 and 477,395.55 is: 658,783.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,345.47 : 1,185,856.52 = 477,395.55 : x
  2. Step 2: Convert to fraction form
    859,345.47/1,185,856.52 = 477,395.55/x
  3. Step 3: Cross multiply
    859,345.47x = 1,185,856.52 × 477,395.55
  4. Step 4: Simplify right side
    859,345.47x = 566,122,623,199.51
  5. Step 5: Solve for x
    x = 566,122,623,199.51/859,345.47
  6. Step 6: Final answer
    x = 658,783.51

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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.