Home / 971,410.80-1,456,234.10-339,980.16

Finding the Fourth Proportional to 971,410.80, 1,456,234.10 and 339,980.16

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Solution

The fourth proportional to 971,410.80, 1,456,234.10 and 339,980.16 is: 509,661.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    971,410.80 : 1,456,234.10 = 339,980.16 : x
  2. Step 2: Convert to fraction form
    971,410.80/1,456,234.10 = 339,980.16/x
  3. Step 3: Cross multiply
    971,410.80x = 1,456,234.10 × 339,980.16
  4. Step 4: Simplify right side
    971,410.80x = 495,090,702,315.46
  5. Step 5: Solve for x
    x = 495,090,702,315.46/971,410.80
  6. Step 6: Final answer
    x = 509,661.52

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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.