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Finding the Fourth Proportional to 610,624.08, 842,762.15 and 338,779.53

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Solution

The fourth proportional to 610,624.08, 842,762.15 and 338,779.53 is: 467,571.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,624.08 : 842,762.15 = 338,779.53 : x
  2. Step 2: Convert to fraction form
    610,624.08/842,762.15 = 338,779.53/x
  3. Step 3: Cross multiply
    610,624.08x = 842,762.15 × 338,779.53
  4. Step 4: Simplify right side
    610,624.08x = 285,510,563,384.89
  5. Step 5: Solve for x
    x = 285,510,563,384.89/610,624.08
  6. Step 6: Final answer
    x = 467,571.74

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1.5x scale

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.