Home / 900,110.53-1,242,152.85-512,914.87

Finding the Fourth Proportional to 900,110.53, 1,242,152.85 and 512,914.87

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Solution

The fourth proportional to 900,110.53, 1,242,152.85 and 512,914.87 is: 707,822.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    900,110.53 : 1,242,152.85 = 512,914.87 : x
  2. Step 2: Convert to fraction form
    900,110.53/1,242,152.85 = 512,914.87/x
  3. Step 3: Cross multiply
    900,110.53x = 1,242,152.85 × 512,914.87
  4. Step 4: Simplify right side
    900,110.53x = 637,118,667,577.88
  5. Step 5: Solve for x
    x = 637,118,667,577.88/900,110.53
  6. Step 6: Final answer
    x = 707,822.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.