Home / 931,590.80-1,397,386.20-340,845.20

Finding the Fourth Proportional to 931,590.80, 1,397,386.20 and 340,845.20

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Solution

The fourth proportional to 931,590.80, 1,397,386.20 and 340,845.20 is: 511,267.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    931,590.80 : 1,397,386.20 = 340,845.20 : x
  2. Step 2: Convert to fraction form
    931,590.80/1,397,386.20 = 340,845.20/x
  3. Step 3: Cross multiply
    931,590.80x = 1,397,386.20 × 340,845.20
  4. Step 4: Simplify right side
    931,590.80x = 476,292,378,816.24
  5. Step 5: Solve for x
    x = 476,292,378,816.24/931,590.80
  6. Step 6: Final answer
    x = 511,267.80

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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.