Home / 948,011.09-1,308,255.21-518,291.10

Finding the Fourth Proportional to 948,011.09, 1,308,255.21 and 518,291.10

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Solution

The fourth proportional to 948,011.09, 1,308,255.21 and 518,291.10 is: 715,241.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    948,011.09 : 1,308,255.21 = 518,291.10 : x
  2. Step 2: Convert to fraction form
    948,011.09/1,308,255.21 = 518,291.10/x
  3. Step 3: Cross multiply
    948,011.09x = 1,308,255.21 × 518,291.10
  4. Step 4: Simplify right side
    948,011.09x = 678,057,031,871.63
  5. Step 5: Solve for x
    x = 678,057,031,871.63/948,011.09
  6. Step 6: Final answer
    x = 715,241.67

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Double scale
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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.