Home / 5,237,719.79-7,856,911.76-1,643,628.60

Finding the Fourth Proportional to 5,237,719.79, 7,856,911.76 and 1,643,628.60

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Solution

The fourth proportional to 5,237,719.79, 7,856,911.76 and 1,643,628.60 is: 2,465,547.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,237,719.79 : 7,856,911.76 = 1,643,628.60 : x
  2. Step 2: Convert to fraction form
    5,237,719.79/7,856,911.76 = 1,643,628.60/x
  3. Step 3: Cross multiply
    5,237,719.79x = 7,856,911.76 × 1,643,628.60
  4. Step 4: Simplify right side
    5,237,719.79x = 12,913,844,876,412.34
  5. Step 5: Solve for x
    x = 12,913,844,876,412.34/5,237,719.79
  6. Step 6: Final answer
    x = 2,465,547.11

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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.