Home / 998,802.60-1,499,270.07-430,464.18

Finding the Fourth Proportional to 998,802.60, 1,499,270.07 and 430,464.18

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Solution

The fourth proportional to 998,802.60, 1,499,270.07 and 430,464.18 is: 646,155.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    998,802.60 : 1,499,270.07 = 430,464.18 : x
  2. Step 2: Convert to fraction form
    998,802.60/1,499,270.07 = 430,464.18/x
  3. Step 3: Cross multiply
    998,802.60x = 1,499,270.07 × 430,464.18
  4. Step 4: Simplify right side
    998,802.60x = 645,382,061,281.09
  5. Step 5: Solve for x
    x = 645,382,061,281.09/998,802.60
  6. Step 6: Final answer
    x = 646,155.77

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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.