Home / 530,011.41-731,545.66-300,702.92

Finding the Fourth Proportional to 530,011.41, 731,545.66 and 300,702.92

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Solution

The fourth proportional to 530,011.41, 731,545.66 and 300,702.92 is: 415,043.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,011.41 : 731,545.66 = 300,702.92 : x
  2. Step 2: Convert to fraction form
    530,011.41/731,545.66 = 300,702.92/x
  3. Step 3: Cross multiply
    530,011.41x = 731,545.66 × 300,702.92
  4. Step 4: Simplify right side
    530,011.41x = 219,977,914,571.81
  5. Step 5: Solve for x
    x = 219,977,914,571.81/530,011.41
  6. Step 6: Final answer
    x = 415,043.74

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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.