Home / 513,968.09-709,281.55-284,529.18

Finding the Fourth Proportional to 513,968.09, 709,281.55 and 284,529.18

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Solution

The fourth proportional to 513,968.09, 709,281.55 and 284,529.18 is: 392,653.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,968.09 : 709,281.55 = 284,529.18 : x
  2. Step 2: Convert to fraction form
    513,968.09/709,281.55 = 284,529.18/x
  3. Step 3: Cross multiply
    513,968.09x = 709,281.55 × 284,529.18
  4. Step 4: Simplify right side
    513,968.09x = 201,811,297,810.63
  5. Step 5: Solve for x
    x = 201,811,297,810.63/513,968.09
  6. Step 6: Final answer
    x = 392,653.36

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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.