Home / 784,855.32-1,083,068.34-445,316.28

Finding the Fourth Proportional to 784,855.32, 1,083,068.34 and 445,316.28

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Solution

The fourth proportional to 784,855.32, 1,083,068.34 and 445,316.28 is: 614,518.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    784,855.32 : 1,083,068.34 = 445,316.28 : x
  2. Step 2: Convert to fraction form
    784,855.32/1,083,068.34 = 445,316.28/x
  3. Step 3: Cross multiply
    784,855.32x = 1,083,068.34 × 445,316.28
  4. Step 4: Simplify right side
    784,855.32x = 482,307,964,154.58
  5. Step 5: Solve for x
    x = 482,307,964,154.58/784,855.32
  6. Step 6: Final answer
    x = 614,518.31

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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.