Home / 530,281.08-731,803.30-288,579.24

Finding the Fourth Proportional to 530,281.08, 731,803.30 and 288,579.24

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Solution

The fourth proportional to 530,281.08, 731,803.30 and 288,579.24 is: 398,247.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,281.08 : 731,803.30 = 288,579.24 : x
  2. Step 2: Convert to fraction form
    530,281.08/731,803.30 = 288,579.24/x
  3. Step 3: Cross multiply
    530,281.08x = 731,803.30 × 288,579.24
  4. Step 4: Simplify right side
    530,281.08x = 211,183,240,143.49
  5. Step 5: Solve for x
    x = 211,183,240,143.49/530,281.08
  6. Step 6: Final answer
    x = 398,247.74

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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.