Home / 1,007,964.48-1,390,749.12-572,285.28

Finding the Fourth Proportional to 1,007,964.48, 1,390,749.12 and 572,285.28

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Solution

The fourth proportional to 1,007,964.48, 1,390,749.12 and 572,285.28 is: 789,616.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,007,964.48 : 1,390,749.12 = 572,285.28 : x
  2. Step 2: Convert to fraction form
    1,007,964.48/1,390,749.12 = 572,285.28/x
  3. Step 3: Cross multiply
    1,007,964.48x = 1,390,749.12 × 572,285.28
  4. Step 4: Simplify right side
    1,007,964.48x = 795,905,249,548.95
  5. Step 5: Solve for x
    x = 795,905,249,548.95/1,007,964.48
  6. Step 6: Final answer
    x = 789,616.37

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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.