Home / 530,275.59-731,795.70-288,573.75

Finding the Fourth Proportional to 530,275.59, 731,795.70 and 288,573.75

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Solution

The fourth proportional to 530,275.59, 731,795.70 and 288,573.75 is: 398,240.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,275.59 : 731,795.70 = 288,573.75 : x
  2. Step 2: Convert to fraction form
    530,275.59/731,795.70 = 288,573.75/x
  3. Step 3: Cross multiply
    530,275.59x = 731,795.70 × 288,573.75
  4. Step 4: Simplify right side
    530,275.59x = 211,177,029,382.88
  5. Step 5: Solve for x
    x = 211,177,029,382.88/530,275.59
  6. Step 6: Final answer
    x = 398,240.15

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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.