Home / 729,342.33-1,005,287.76-487,536.67

Finding the Fourth Proportional to 729,342.33, 1,005,287.76 and 487,536.67

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Solution

The fourth proportional to 729,342.33, 1,005,287.76 and 487,536.67 is: 671,995.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    729,342.33 : 1,005,287.76 = 487,536.67 : x
  2. Step 2: Convert to fraction form
    729,342.33/1,005,287.76 = 487,536.67/x
  3. Step 3: Cross multiply
    729,342.33x = 1,005,287.76 × 487,536.67
  4. Step 4: Simplify right side
    729,342.33x = 490,114,648,158.77
  5. Step 5: Solve for x
    x = 490,114,648,158.77/729,342.33
  6. Step 6: Final answer
    x = 671,995.35

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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.