Home / 4,742,838.78-7,115,391.81-1,547,970.90

Finding the Fourth Proportional to 4,742,838.78, 7,115,391.81 and 1,547,970.90

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Solution

The fourth proportional to 4,742,838.78, 7,115,391.81 and 1,547,970.90 is: 2,322,326.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,742,838.78 : 7,115,391.81 = 1,547,970.90 : x
  2. Step 2: Convert to fraction form
    4,742,838.78/7,115,391.81 = 1,547,970.90/x
  3. Step 3: Cross multiply
    4,742,838.78x = 7,115,391.81 × 1,547,970.90
  4. Step 4: Simplify right side
    4,742,838.78x = 11,014,419,463,978.33
  5. Step 5: Solve for x
    x = 11,014,419,463,978.33/4,742,838.78
  6. Step 6: Final answer
    x = 2,322,326.35

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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.