Home / 689,946.93-951,861.58-509,089.93

Finding the Fourth Proportional to 689,946.93, 951,861.58 and 509,089.93

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Solution

The fourth proportional to 689,946.93, 951,861.58 and 509,089.93 is: 702,348.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,946.93 : 951,861.58 = 509,089.93 : x
  2. Step 2: Convert to fraction form
    689,946.93/951,861.58 = 509,089.93/x
  3. Step 3: Cross multiply
    689,946.93x = 951,861.58 × 509,089.93
  4. Step 4: Simplify right side
    689,946.93x = 484,583,141,479.51
  5. Step 5: Solve for x
    x = 484,583,141,479.51/689,946.93
  6. Step 6: Final answer
    x = 702,348.43

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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.