Home / 430,854.40-646,281.60-404,282.35

Finding the Fourth Proportional to 430,854.40, 646,281.60 and 404,282.35

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Solution

The fourth proportional to 430,854.40, 646,281.60 and 404,282.35 is: 606,423.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    430,854.40 : 646,281.60 = 404,282.35 : x
  2. Step 2: Convert to fraction form
    430,854.40/646,281.60 = 404,282.35/x
  3. Step 3: Cross multiply
    430,854.40x = 646,281.60 × 404,282.35
  4. Step 4: Simplify right side
    430,854.40x = 261,280,244,009.76
  5. Step 5: Solve for x
    x = 261,280,244,009.76/430,854.40
  6. Step 6: Final answer
    x = 606,423.53

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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.