Home / 902,085.63-1,351,689.09-661,082.69

Finding the Fourth Proportional to 902,085.63, 1,351,689.09 and 661,082.69

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Solution

The fourth proportional to 902,085.63, 1,351,689.09 and 661,082.69 is: 990,569.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    902,085.63 : 1,351,689.09 = 661,082.69 : x
  2. Step 2: Convert to fraction form
    902,085.63/1,351,689.09 = 661,082.69/x
  3. Step 3: Cross multiply
    902,085.63x = 1,351,689.09 × 661,082.69
  4. Step 4: Simplify right side
    902,085.63x = 893,578,252,902.41
  5. Step 5: Solve for x
    x = 893,578,252,902.41/902,085.63
  6. Step 6: Final answer
    x = 990,569.21

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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.