Home / 1,022,398.55-1,533,597.83-312,420.45

Finding the Fourth Proportional to 1,022,398.55, 1,533,597.83 and 312,420.45

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Solution

The fourth proportional to 1,022,398.55, 1,533,597.83 and 312,420.45 is: 468,630.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,022,398.55 : 1,533,597.83 = 312,420.45 : x
  2. Step 2: Convert to fraction form
    1,022,398.55/1,533,597.83 = 312,420.45/x
  3. Step 3: Cross multiply
    1,022,398.55x = 1,533,597.83 × 312,420.45
  4. Step 4: Simplify right side
    1,022,398.55x = 479,127,322,605.52
  5. Step 5: Solve for x
    x = 479,127,322,605.52/1,022,398.55
  6. Step 6: Final answer
    x = 468,630.68

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Double scale
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Similar ratio
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1.5x scale

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.