Home / 1,128,031.65-1,556,686.25-644,595.63

Finding the Fourth Proportional to 1,128,031.65, 1,556,686.25 and 644,595.63

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Solution

The fourth proportional to 1,128,031.65, 1,556,686.25 and 644,595.63 is: 889,543.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,128,031.65 : 1,556,686.25 = 644,595.63 : x
  2. Step 2: Convert to fraction form
    1,128,031.65/1,556,686.25 = 644,595.63/x
  3. Step 3: Cross multiply
    1,128,031.65x = 1,556,686.25 × 644,595.63
  4. Step 4: Simplify right side
    1,128,031.65x = 1,003,433,150,808.11
  5. Step 5: Solve for x
    x = 1,003,433,150,808.11/1,128,031.65
  6. Step 6: Final answer
    x = 889,543.44

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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.