Home / 1,289,541.70-1,934,312.55-990,597.70

Finding the Fourth Proportional to 1,289,541.70, 1,934,312.55 and 990,597.70

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Solution

The fourth proportional to 1,289,541.70, 1,934,312.55 and 990,597.70 is: 1,485,896.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,289,541.70 : 1,934,312.55 = 990,597.70 : x
  2. Step 2: Convert to fraction form
    1,289,541.70/1,934,312.55 = 990,597.70/x
  3. Step 3: Cross multiply
    1,289,541.70x = 1,934,312.55 × 990,597.70
  4. Step 4: Simplify right side
    1,289,541.70x = 1,916,125,563,111.14
  5. Step 5: Solve for x
    x = 1,916,125,563,111.14/1,289,541.70
  6. Step 6: Final answer
    x = 1,485,896.55

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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.