Home / 1,007,646.39-1,390,538.36-572,059.78

Finding the Fourth Proportional to 1,007,646.39, 1,390,538.36 and 572,059.78

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Solution

The fourth proportional to 1,007,646.39, 1,390,538.36 and 572,059.78 is: 789,434.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,007,646.39 : 1,390,538.36 = 572,059.78 : x
  2. Step 2: Convert to fraction form
    1,007,646.39/1,390,538.36 = 572,059.78/x
  3. Step 3: Cross multiply
    1,007,646.39x = 1,390,538.36 × 572,059.78
  4. Step 4: Simplify right side
    1,007,646.39x = 795,471,066,256.96
  5. Step 5: Solve for x
    x = 795,471,066,256.96/1,007,646.39
  6. Step 6: Final answer
    x = 789,434.74

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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.