Home / 1,128,152.04-1,556,835.30-644,711.64

Finding the Fourth Proportional to 1,128,152.04, 1,556,835.30 and 644,711.64

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Solution

The fourth proportional to 1,128,152.04, 1,556,835.30 and 644,711.64 is: 889,693.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,128,152.04 : 1,556,835.30 = 644,711.64 : x
  2. Step 2: Convert to fraction form
    1,128,152.04/1,556,835.30 = 644,711.64/x
  3. Step 3: Cross multiply
    1,128,152.04x = 1,556,835.30 × 644,711.64
  4. Step 4: Simplify right side
    1,128,152.04x = 1,003,709,839,472.89
  5. Step 5: Solve for x
    x = 1,003,709,839,472.89/1,128,152.04
  6. Step 6: Final answer
    x = 889,693.77

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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.