Home / 863,417.27-1,294,845.65-286,885.72

Finding the Fourth Proportional to 863,417.27, 1,294,845.65 and 286,885.72

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Solution

The fourth proportional to 863,417.27, 1,294,845.65 and 286,885.72 is: 430,235.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    863,417.27 : 1,294,845.65 = 286,885.72 : x
  2. Step 2: Convert to fraction form
    863,417.27/1,294,845.65 = 286,885.72/x
  3. Step 3: Cross multiply
    863,417.27x = 1,294,845.65 × 286,885.72
  4. Step 4: Simplify right side
    863,417.27x = 371,472,718,680.46
  5. Step 5: Solve for x
    x = 371,472,718,680.46/863,417.27
  6. Step 6: Final answer
    x = 430,235.45

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Double scale
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1.5x scale

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.