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Finding the Fourth Proportional to 539,931.40, 809,994.30 and 224,420.20

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Solution

The fourth proportional to 539,931.40, 809,994.30 and 224,420.20 is: 336,670.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,931.40 : 809,994.30 = 224,420.20 : x
  2. Step 2: Convert to fraction form
    539,931.40/809,994.30 = 224,420.20/x
  3. Step 3: Cross multiply
    539,931.40x = 809,994.30 × 224,420.20
  4. Step 4: Simplify right side
    539,931.40x = 181,779,082,804.86
  5. Step 5: Solve for x
    x = 181,779,082,804.86/539,931.40
  6. Step 6: Final answer
    x = 336,670.70

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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.