Home / 530,127.44-731,726.28-312,462.62

Finding the Fourth Proportional to 530,127.44, 731,726.28 and 312,462.62

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Solution

The fourth proportional to 530,127.44, 731,726.28 and 312,462.62 is: 431,287.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,127.44 : 731,726.28 = 312,462.62 : x
  2. Step 2: Convert to fraction form
    530,127.44/731,726.28 = 312,462.62/x
  3. Step 3: Cross multiply
    530,127.44x = 731,726.28 × 312,462.62
  4. Step 4: Simplify right side
    530,127.44x = 228,637,107,570.60
  5. Step 5: Solve for x
    x = 228,637,107,570.60/530,127.44
  6. Step 6: Final answer
    x = 431,287.07

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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.