Home / 748,303.76-1,032,620.64-408,706.40

Finding the Fourth Proportional to 748,303.76, 1,032,620.64 and 408,706.40

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Solution

The fourth proportional to 748,303.76, 1,032,620.64 and 408,706.40 is: 563,993.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    748,303.76 : 1,032,620.64 = 408,706.40 : x
  2. Step 2: Convert to fraction form
    748,303.76/1,032,620.64 = 408,706.40/x
  3. Step 3: Cross multiply
    748,303.76x = 1,032,620.64 × 408,706.40
  4. Step 4: Simplify right side
    748,303.76x = 422,038,664,340.10
  5. Step 5: Solve for x
    x = 422,038,664,340.10/748,303.76
  6. Step 6: Final answer
    x = 563,993.78

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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.