Home / 1,186,285.80-1,779,428.70-738,388.20

Finding the Fourth Proportional to 1,186,285.80, 1,779,428.70 and 738,388.20

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Solution

The fourth proportional to 1,186,285.80, 1,779,428.70 and 738,388.20 is: 1,107,582.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,186,285.80 : 1,779,428.70 = 738,388.20 : x
  2. Step 2: Convert to fraction form
    1,186,285.80/1,779,428.70 = 738,388.20/x
  3. Step 3: Cross multiply
    1,186,285.80x = 1,779,428.70 × 738,388.20
  4. Step 4: Simplify right side
    1,186,285.80x = 1,313,909,154,821.34
  5. Step 5: Solve for x
    x = 1,313,909,154,821.34/1,186,285.80
  6. Step 6: Final answer
    x = 1,107,582.30

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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.