Home / 739,968.30-1,109,624.40-340,403.40

Finding the Fourth Proportional to 739,968.30, 1,109,624.40 and 340,403.40

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Solution

The fourth proportional to 739,968.30, 1,109,624.40 and 340,403.40 is: 510,454.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,968.30 : 1,109,624.40 = 340,403.40 : x
  2. Step 2: Convert to fraction form
    739,968.30/1,109,624.40 = 340,403.40/x
  3. Step 3: Cross multiply
    739,968.30x = 1,109,624.40 × 340,403.40
  4. Step 4: Simplify right side
    739,968.30x = 377,719,918,482.96
  5. Step 5: Solve for x
    x = 377,719,918,482.96/739,968.30
  6. Step 6: Final answer
    x = 510,454.19

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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.