Home / 651,267.20-976,900.80-402,435.20

Finding the Fourth Proportional to 651,267.20, 976,900.80 and 402,435.20

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Solution

The fourth proportional to 651,267.20, 976,900.80 and 402,435.20 is: 603,652.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,267.20 : 976,900.80 = 402,435.20 : x
  2. Step 2: Convert to fraction form
    651,267.20/976,900.80 = 402,435.20/x
  3. Step 3: Cross multiply
    651,267.20x = 976,900.80 × 402,435.20
  4. Step 4: Simplify right side
    651,267.20x = 393,139,268,828.16
  5. Step 5: Solve for x
    x = 393,139,268,828.16/651,267.20
  6. Step 6: Final answer
    x = 603,652.80

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Similar ratio
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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.