Home / 1,006,905-1,510,407.28-287,352.76

Finding the Fourth Proportional to 1,006,905, 1,510,407.28 and 287,352.76

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Solution

The fourth proportional to 1,006,905, 1,510,407.28 and 287,352.76 is: 431,043.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,006,905 : 1,510,407.28 = 287,352.76 : x
  2. Step 2: Convert to fraction form
    1,006,905/1,510,407.28 = 287,352.76/x
  3. Step 3: Cross multiply
    1,006,905x = 1,510,407.28 × 287,352.76
  4. Step 4: Simplify right side
    1,006,905x = 434,019,700,632.09
  5. Step 5: Solve for x
    x = 434,019,700,632.09/1,006,905
  6. Step 6: Final answer
    x = 431,043.35

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.