Home / 688,498.76-1,033,152.30-289,108.80

Finding the Fourth Proportional to 688,498.76, 1,033,152.30 and 289,108.80

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Solution

The fourth proportional to 688,498.76, 1,033,152.30 and 289,108.80 is: 433,832.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,498.76 : 1,033,152.30 = 289,108.80 : x
  2. Step 2: Convert to fraction form
    688,498.76/1,033,152.30 = 289,108.80/x
  3. Step 3: Cross multiply
    688,498.76x = 1,033,152.30 × 289,108.80
  4. Step 4: Simplify right side
    688,498.76x = 298,693,421,670.24
  5. Step 5: Solve for x
    x = 298,693,421,670.24/688,498.76
  6. Step 6: Final answer
    x = 433,832.91

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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.