Home / 916,513.20-1,264,730.88-553,722.60

Finding the Fourth Proportional to 916,513.20, 1,264,730.88 and 553,722.60

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Solution

The fourth proportional to 916,513.20, 1,264,730.88 and 553,722.60 is: 764,102.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    916,513.20 : 1,264,730.88 = 553,722.60 : x
  2. Step 2: Convert to fraction form
    916,513.20/1,264,730.88 = 553,722.60/x
  3. Step 3: Cross multiply
    916,513.20x = 1,264,730.88 × 553,722.60
  4. Step 4: Simplify right side
    916,513.20x = 700,310,071,173.89
  5. Step 5: Solve for x
    x = 700,310,071,173.89/916,513.20
  6. Step 6: Final answer
    x = 764,102.55

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1.5x scale

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.