Home / 817,646.64-1,128,389.52-455,093.72

Finding the Fourth Proportional to 817,646.64, 1,128,389.52 and 455,093.72

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Solution

The fourth proportional to 817,646.64, 1,128,389.52 and 455,093.72 is: 628,050.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,646.64 : 1,128,389.52 = 455,093.72 : x
  2. Step 2: Convert to fraction form
    817,646.64/1,128,389.52 = 455,093.72/x
  3. Step 3: Cross multiply
    817,646.64x = 1,128,389.52 × 455,093.72
  4. Step 4: Simplify right side
    817,646.64x = 513,522,984,265.81
  5. Step 5: Solve for x
    x = 513,522,984,265.81/817,646.64
  6. Step 6: Final answer
    x = 628,050.01

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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.