Home / 1,021,498.37-1,409,638.87-556,341.72

Finding the Fourth Proportional to 1,021,498.37, 1,409,638.87 and 556,341.72

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Solution

The fourth proportional to 1,021,498.37, 1,409,638.87 and 556,341.72 is: 767,735.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,021,498.37 : 1,409,638.87 = 556,341.72 : x
  2. Step 2: Convert to fraction form
    1,021,498.37/1,409,638.87 = 556,341.72/x
  3. Step 3: Cross multiply
    1,021,498.37x = 1,409,638.87 × 556,341.72
  4. Step 4: Simplify right side
    1,021,498.37x = 784,240,913,514.66
  5. Step 5: Solve for x
    x = 784,240,913,514.66/1,021,498.37
  6. Step 6: Final answer
    x = 767,735.84

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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.