Home / 1,420,121.10-2,130,192.45-473,490.30

Finding the Fourth Proportional to 1,420,121.10, 2,130,192.45 and 473,490.30

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Solution

The fourth proportional to 1,420,121.10, 2,130,192.45 and 473,490.30 is: 710,239.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,420,121.10 : 2,130,192.45 = 473,490.30 : x
  2. Step 2: Convert to fraction form
    1,420,121.10/2,130,192.45 = 473,490.30/x
  3. Step 3: Cross multiply
    1,420,121.10x = 2,130,192.45 × 473,490.30
  4. Step 4: Simplify right side
    1,420,121.10x = 1,008,625,462,208.24
  5. Step 5: Solve for x
    x = 1,008,625,462,208.24/1,420,121.10
  6. Step 6: Final answer
    x = 710,239.05

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Double scale
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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.