Home / 776,141.40-1,070,913.42-453,788.76

Finding the Fourth Proportional to 776,141.40, 1,070,913.42 and 453,788.76

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Solution

The fourth proportional to 776,141.40, 1,070,913.42 and 453,788.76 is: 626,133.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    776,141.40 : 1,070,913.42 = 453,788.76 : x
  2. Step 2: Convert to fraction form
    776,141.40/1,070,913.42 = 453,788.76/x
  3. Step 3: Cross multiply
    776,141.40x = 1,070,913.42 × 453,788.76
  4. Step 4: Simplify right side
    776,141.40x = 485,968,472,929.16
  5. Step 5: Solve for x
    x = 485,968,472,929.16/776,141.40
  6. Step 6: Final answer
    x = 626,133.94

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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.