Home / 1,383,730.18-1,909,465.32-802,908.34

Finding the Fourth Proportional to 1,383,730.18, 1,909,465.32 and 802,908.34

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Solution

The fourth proportional to 1,383,730.18, 1,909,465.32 and 802,908.34 is: 1,107,965.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,383,730.18 : 1,909,465.32 = 802,908.34 : x
  2. Step 2: Convert to fraction form
    1,383,730.18/1,909,465.32 = 802,908.34/x
  3. Step 3: Cross multiply
    1,383,730.18x = 1,909,465.32 × 802,908.34
  4. Step 4: Simplify right side
    1,383,730.18x = 1,533,125,630,368.77
  5. Step 5: Solve for x
    x = 1,533,125,630,368.77/1,383,730.18
  6. Step 6: Final answer
    x = 1,107,965.74

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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.