Home / 530,122.12-731,822.62-326,347.71

Finding the Fourth Proportional to 530,122.12, 731,822.62 and 326,347.71

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Solution

The fourth proportional to 530,122.12, 731,822.62 and 326,347.71 is: 450,516.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,122.12 : 731,822.62 = 326,347.71 : x
  2. Step 2: Convert to fraction form
    530,122.12/731,822.62 = 326,347.71/x
  3. Step 3: Cross multiply
    530,122.12x = 731,822.62 × 326,347.71
  4. Step 4: Simplify right side
    530,122.12x = 238,828,639,315.47
  5. Step 5: Solve for x
    x = 238,828,639,315.47/530,122.12
  6. Step 6: Final answer
    x = 450,516.27

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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.