Home / 764,340.30-1,054,848.42-458,428.41

Finding the Fourth Proportional to 764,340.30, 1,054,848.42 and 458,428.41

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Solution

The fourth proportional to 764,340.30, 1,054,848.42 and 458,428.41 is: 632,666.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,340.30 : 1,054,848.42 = 458,428.41 : x
  2. Step 2: Convert to fraction form
    764,340.30/1,054,848.42 = 458,428.41/x
  3. Step 3: Cross multiply
    764,340.30x = 1,054,848.42 × 458,428.41
  4. Step 4: Simplify right side
    764,340.30x = 483,572,483,971.61
  5. Step 5: Solve for x
    x = 483,572,483,971.61/764,340.30
  6. Step 6: Final answer
    x = 632,666.48

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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.