Home / 1,133,330.80-1,699,996.20-385,376.80

Finding the Fourth Proportional to 1,133,330.80, 1,699,996.20 and 385,376.80

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Solution

The fourth proportional to 1,133,330.80, 1,699,996.20 and 385,376.80 is: 578,065.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,133,330.80 : 1,699,996.20 = 385,376.80 : x
  2. Step 2: Convert to fraction form
    1,133,330.80/1,699,996.20 = 385,376.80/x
  3. Step 3: Cross multiply
    1,133,330.80x = 1,699,996.20 × 385,376.80
  4. Step 4: Simplify right side
    1,133,330.80x = 655,139,095,568.16
  5. Step 5: Solve for x
    x = 655,139,095,568.16/1,133,330.80
  6. Step 6: Final answer
    x = 578,065.20

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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.