Home / 974,436.80-1,461,655.20-638,513.60

Finding the Fourth Proportional to 974,436.80, 1,461,655.20 and 638,513.60

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Solution

The fourth proportional to 974,436.80, 1,461,655.20 and 638,513.60 is: 957,770.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    974,436.80 : 1,461,655.20 = 638,513.60 : x
  2. Step 2: Convert to fraction form
    974,436.80/1,461,655.20 = 638,513.60/x
  3. Step 3: Cross multiply
    974,436.80x = 1,461,655.20 × 638,513.60
  4. Step 4: Simplify right side
    974,436.80x = 933,286,723,710.72
  5. Step 5: Solve for x
    x = 933,286,723,710.72/974,436.80
  6. Step 6: Final answer
    x = 957,770.40

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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.