Home / 931,533.80-1,397,300.70-340,788.20

Finding the Fourth Proportional to 931,533.80, 1,397,300.70 and 340,788.20

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Solution

The fourth proportional to 931,533.80, 1,397,300.70 and 340,788.20 is: 511,182.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    931,533.80 : 1,397,300.70 = 340,788.20 : x
  2. Step 2: Convert to fraction form
    931,533.80/1,397,300.70 = 340,788.20/x
  3. Step 3: Cross multiply
    931,533.80x = 1,397,300.70 × 340,788.20
  4. Step 4: Simplify right side
    931,533.80x = 476,183,590,411.74
  5. Step 5: Solve for x
    x = 476,183,590,411.74/931,533.80
  6. Step 6: Final answer
    x = 511,182.30

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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.