Home / 739,409.86-1,020,432.85-417,002.32

Finding the Fourth Proportional to 739,409.86, 1,020,432.85 and 417,002.32

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Solution

The fourth proportional to 739,409.86, 1,020,432.85 and 417,002.32 is: 575,489.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,409.86 : 1,020,432.85 = 417,002.32 : x
  2. Step 2: Convert to fraction form
    739,409.86/1,020,432.85 = 417,002.32/x
  3. Step 3: Cross multiply
    739,409.86x = 1,020,432.85 × 417,002.32
  4. Step 4: Simplify right side
    739,409.86x = 425,522,860,752.05
  5. Step 5: Solve for x
    x = 425,522,860,752.05/739,409.86
  6. Step 6: Final answer
    x = 575,489.84

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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.