Home / 1,128,477.42-1,557,298.86-645,053.04

Finding the Fourth Proportional to 1,128,477.42, 1,557,298.86 and 645,053.04

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Solution

The fourth proportional to 1,128,477.42, 1,557,298.86 and 645,053.04 is: 890,173.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,128,477.42 : 1,557,298.86 = 645,053.04 : x
  2. Step 2: Convert to fraction form
    1,128,477.42/1,557,298.86 = 645,053.04/x
  3. Step 3: Cross multiply
    1,128,477.42x = 1,557,298.86 × 645,053.04
  4. Step 4: Simplify right side
    1,128,477.42x = 1,004,540,363,831.53
  5. Step 5: Solve for x
    x = 1,004,540,363,831.53/1,128,477.42
  6. Step 6: Final answer
    x = 890,173.21

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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.