Home / 898,515.86-1,239,946.95-490,614.81

Finding the Fourth Proportional to 898,515.86, 1,239,946.95 and 490,614.81

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Solution

The fourth proportional to 898,515.86, 1,239,946.95 and 490,614.81 is: 677,045.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    898,515.86 : 1,239,946.95 = 490,614.81 : x
  2. Step 2: Convert to fraction form
    898,515.86/1,239,946.95 = 490,614.81/x
  3. Step 3: Cross multiply
    898,515.86x = 1,239,946.95 × 490,614.81
  4. Step 4: Simplify right side
    898,515.86x = 608,336,331,084.60
  5. Step 5: Solve for x
    x = 608,336,331,084.60/898,515.86
  6. Step 6: Final answer
    x = 677,045.74

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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.