Home / 900,119.62-1,242,125.53-513,018.84

Finding the Fourth Proportional to 900,119.62, 1,242,125.53 and 513,018.84

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Solution

The fourth proportional to 900,119.62, 1,242,125.53 and 513,018.84 is: 707,943.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    900,119.62 : 1,242,125.53 = 513,018.84 : x
  2. Step 2: Convert to fraction form
    900,119.62/1,242,125.53 = 513,018.84/x
  3. Step 3: Cross multiply
    900,119.62x = 1,242,125.53 × 513,018.84
  4. Step 4: Simplify right side
    900,119.62x = 637,233,798,534.99
  5. Step 5: Solve for x
    x = 637,233,798,534.99/900,119.62
  6. Step 6: Final answer
    x = 707,943.46

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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.