Home / 1,142,535.78-1,576,697.40-626,289.30

Finding the Fourth Proportional to 1,142,535.78, 1,576,697.40 and 626,289.30

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Solution

The fourth proportional to 1,142,535.78, 1,576,697.40 and 626,289.30 is: 864,278.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,142,535.78 : 1,576,697.40 = 626,289.30 : x
  2. Step 2: Convert to fraction form
    1,142,535.78/1,576,697.40 = 626,289.30/x
  3. Step 3: Cross multiply
    1,142,535.78x = 1,576,697.40 × 626,289.30
  4. Step 4: Simplify right side
    1,142,535.78x = 987,468,710,957.82
  5. Step 5: Solve for x
    x = 987,468,710,957.82/1,142,535.78
  6. Step 6: Final answer
    x = 864,278.15

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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.