Home / 1,210,608.90-1,670,516.65-745,388.89

Finding the Fourth Proportional to 1,210,608.90, 1,670,516.65 and 745,388.89

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Solution

The fourth proportional to 1,210,608.90, 1,670,516.65 and 745,388.89 is: 1,028,560.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,210,608.90 : 1,670,516.65 = 745,388.89 : x
  2. Step 2: Convert to fraction form
    1,210,608.90/1,670,516.65 = 745,388.89/x
  3. Step 3: Cross multiply
    1,210,608.90x = 1,670,516.65 × 745,388.89
  4. Step 4: Simplify right side
    1,210,608.90x = 1,245,184,547,762.30
  5. Step 5: Solve for x
    x = 1,245,184,547,762.30/1,210,608.90
  6. Step 6: Final answer
    x = 1,028,560.55

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.