Home / 764,342.55-1,054,851.53-458,430.66

Finding the Fourth Proportional to 764,342.55, 1,054,851.53 and 458,430.66

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Solution

The fourth proportional to 764,342.55, 1,054,851.53 and 458,430.66 is: 632,669.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,342.55 : 1,054,851.53 = 458,430.66 : x
  2. Step 2: Convert to fraction form
    764,342.55/1,054,851.53 = 458,430.66/x
  3. Step 3: Cross multiply
    764,342.55x = 1,054,851.53 × 458,430.66
  4. Step 4: Simplify right side
    764,342.55x = 483,576,280,807.76
  5. Step 5: Solve for x
    x = 483,576,280,807.76/764,342.55
  6. Step 6: Final answer
    x = 632,669.58

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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.