Home / 3,128,254.90-4,692,382.35-1,330,686.70

Finding the Fourth Proportional to 3,128,254.90, 4,692,382.35 and 1,330,686.70

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Solution

The fourth proportional to 3,128,254.90, 4,692,382.35 and 1,330,686.70 is: 1,996,030.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,128,254.90 : 4,692,382.35 = 1,330,686.70 : x
  2. Step 2: Convert to fraction form
    3,128,254.90/4,692,382.35 = 1,330,686.70/x
  3. Step 3: Cross multiply
    3,128,254.90x = 4,692,382.35 × 1,330,686.70
  4. Step 4: Simplify right side
    3,128,254.90x = 6,244,090,784,459.74
  5. Step 5: Solve for x
    x = 6,244,090,784,459.74/3,128,254.90
  6. Step 6: Final answer
    x = 1,996,030.05

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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.