Home / 1,189,330.75-1,783,980.18-290,780.23

Finding the Fourth Proportional to 1,189,330.75, 1,783,980.18 and 290,780.23

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Solution

The fourth proportional to 1,189,330.75, 1,783,980.18 and 290,780.23 is: 436,166.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,189,330.75 : 1,783,980.18 = 290,780.23 : x
  2. Step 2: Convert to fraction form
    1,189,330.75/1,783,980.18 = 290,780.23/x
  3. Step 3: Cross multiply
    1,189,330.75x = 1,783,980.18 × 290,780.23
  4. Step 4: Simplify right side
    1,189,330.75x = 518,746,167,055.84
  5. Step 5: Solve for x
    x = 518,746,167,055.84/1,189,330.75
  6. Step 6: Final answer
    x = 436,166.45

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Double scale
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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.