Home / 764,420.59-1,054,814.70-458,509.41

Finding the Fourth Proportional to 764,420.59, 1,054,814.70 and 458,509.41

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Solution

The fourth proportional to 764,420.59, 1,054,814.70 and 458,509.41 is: 632,691.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,420.59 : 1,054,814.70 = 458,509.41 : x
  2. Step 2: Convert to fraction form
    764,420.59/1,054,814.70 = 458,509.41/x
  3. Step 3: Cross multiply
    764,420.59x = 1,054,814.70 × 458,509.41
  4. Step 4: Simplify right side
    764,420.59x = 483,642,467,475.74
  5. Step 5: Solve for x
    x = 483,642,467,475.74/764,420.59
  6. Step 6: Final answer
    x = 632,691.57

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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.