Home / 978,031.24-1,349,748.06-548,339.20

Finding the Fourth Proportional to 978,031.24, 1,349,748.06 and 548,339.20

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Solution

The fourth proportional to 978,031.24, 1,349,748.06 and 548,339.20 is: 756,744.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    978,031.24 : 1,349,748.06 = 548,339.20 : x
  2. Step 2: Convert to fraction form
    978,031.24/1,349,748.06 = 548,339.20/x
  3. Step 3: Cross multiply
    978,031.24x = 1,349,748.06 × 548,339.20
  4. Step 4: Simplify right side
    978,031.24x = 740,119,771,421.95
  5. Step 5: Solve for x
    x = 740,119,771,421.95/978,031.24
  6. Step 6: Final answer
    x = 756,744.51

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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.