Home / 688,437.86-1,033,061.32-289,047.92

Finding the Fourth Proportional to 688,437.86, 1,033,061.32 and 289,047.92

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Solution

The fourth proportional to 688,437.86, 1,033,061.32 and 289,047.92 is: 433,741.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,437.86 : 1,033,061.32 = 289,047.92 : x
  2. Step 2: Convert to fraction form
    688,437.86/1,033,061.32 = 289,047.92/x
  3. Step 3: Cross multiply
    688,437.86x = 1,033,061.32 × 289,047.92
  4. Step 4: Simplify right side
    688,437.86x = 298,604,224,333.22
  5. Step 5: Solve for x
    x = 298,604,224,333.22/688,437.86
  6. Step 6: Final answer
    x = 433,741.72

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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.