Home / 918,008.60-1,377,012.90-512,101.40

Finding the Fourth Proportional to 918,008.60, 1,377,012.90 and 512,101.40

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Solution

The fourth proportional to 918,008.60, 1,377,012.90 and 512,101.40 is: 768,152.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,008.60 : 1,377,012.90 = 512,101.40 : x
  2. Step 2: Convert to fraction form
    918,008.60/1,377,012.90 = 512,101.40/x
  3. Step 3: Cross multiply
    918,008.60x = 1,377,012.90 × 512,101.40
  4. Step 4: Simplify right side
    918,008.60x = 705,170,233,908.06
  5. Step 5: Solve for x
    x = 705,170,233,908.06/918,008.60
  6. Step 6: Final answer
    x = 768,152.10

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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.