Home / 772,056.48-1,065,496.98-445,428

Finding the Fourth Proportional to 772,056.48, 1,065,496.98 and 445,428

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Solution

The fourth proportional to 772,056.48, 1,065,496.98 and 445,428 is: 614,724.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    772,056.48 : 1,065,496.98 = 445,428 : x
  2. Step 2: Convert to fraction form
    772,056.48/1,065,496.98 = 445,428/x
  3. Step 3: Cross multiply
    772,056.48x = 1,065,496.98 × 445,428
  4. Step 4: Simplify right side
    772,056.48x = 474,602,188,807.44
  5. Step 5: Solve for x
    x = 474,602,188,807.44/772,056.48
  6. Step 6: Final answer
    x = 614,724.70

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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.