Home / 998,804.87-1,499,273.45-430,466.45

Finding the Fourth Proportional to 998,804.87, 1,499,273.45 and 430,466.45

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Solution

The fourth proportional to 998,804.87, 1,499,273.45 and 430,466.45 is: 646,159.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    998,804.87 : 1,499,273.45 = 430,466.45 : x
  2. Step 2: Convert to fraction form
    998,804.87/1,499,273.45 = 430,466.45/x
  3. Step 3: Cross multiply
    998,804.87x = 1,499,273.45 × 430,466.45
  4. Step 4: Simplify right side
    998,804.87x = 645,386,909,952.05
  5. Step 5: Solve for x
    x = 645,386,909,952.05/998,804.87
  6. Step 6: Final answer
    x = 646,159.16

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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.