Home / 830,237.90-1,245,389.64-231,251.40

Finding the Fourth Proportional to 830,237.90, 1,245,389.64 and 231,251.40

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Solution

The fourth proportional to 830,237.90, 1,245,389.64 and 231,251.40 is: 346,886.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,237.90 : 1,245,389.64 = 231,251.40 : x
  2. Step 2: Convert to fraction form
    830,237.90/1,245,389.64 = 231,251.40/x
  3. Step 3: Cross multiply
    830,237.90x = 1,245,389.64 × 231,251.40
  4. Step 4: Simplify right side
    830,237.90x = 287,998,097,795.50
  5. Step 5: Solve for x
    x = 287,998,097,795.50/830,237.90
  6. Step 6: Final answer
    x = 346,886.24

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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.