Home / 3,580,128.63-5,370,370.02-1,021,720.68

Finding the Fourth Proportional to 3,580,128.63, 5,370,370.02 and 1,021,720.68

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Solution

The fourth proportional to 3,580,128.63, 5,370,370.02 and 1,021,720.68 is: 1,532,631.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,580,128.63 : 5,370,370.02 = 1,021,720.68 : x
  2. Step 2: Convert to fraction form
    3,580,128.63/5,370,370.02 = 1,021,720.68/x
  3. Step 3: Cross multiply
    3,580,128.63x = 5,370,370.02 × 1,021,720.68
  4. Step 4: Simplify right side
    3,580,128.63x = 5,487,018,108,686.01
  5. Step 5: Solve for x
    x = 5,487,018,108,686.01/3,580,128.63
  6. Step 6: Final answer
    x = 1,532,631.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.