Home / 1,128,031.77-1,556,686.41-644,595.76

Finding the Fourth Proportional to 1,128,031.77, 1,556,686.41 and 644,595.76

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Solution

The fourth proportional to 1,128,031.77, 1,556,686.41 and 644,595.76 is: 889,543.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,128,031.77 : 1,556,686.41 = 644,595.76 : x
  2. Step 2: Convert to fraction form
    1,128,031.77/1,556,686.41 = 644,595.76/x
  3. Step 3: Cross multiply
    1,128,031.77x = 1,556,686.41 × 644,595.76
  4. Step 4: Simplify right side
    1,128,031.77x = 1,003,433,459,535.62
  5. Step 5: Solve for x
    x = 1,003,433,459,535.62/1,128,031.77
  6. Step 6: Final answer
    x = 889,543.62

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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.