Home / 1,128,031.33-1,556,685.81-644,595.32

Finding the Fourth Proportional to 1,128,031.33, 1,556,685.81 and 644,595.32

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Solution

The fourth proportional to 1,128,031.33, 1,556,685.81 and 644,595.32 is: 889,543.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,128,031.33 : 1,556,685.81 = 644,595.32 : x
  2. Step 2: Convert to fraction form
    1,128,031.33/1,556,685.81 = 644,595.32/x
  3. Step 3: Cross multiply
    1,128,031.33x = 1,556,685.81 × 644,595.32
  4. Step 4: Simplify right side
    1,128,031.33x = 1,003,432,387,836.41
  5. Step 5: Solve for x
    x = 1,003,432,387,836.41/1,128,031.33
  6. Step 6: Final answer
    x = 889,543.01

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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.