Home / 686,039.60-1,030,225.80-508,746.80

Finding the Fourth Proportional to 686,039.60, 1,030,225.80 and 508,746.80

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Solution

The fourth proportional to 686,039.60, 1,030,225.80 and 508,746.80 is: 763,985.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    686,039.60 : 1,030,225.80 = 508,746.80 : x
  2. Step 2: Convert to fraction form
    686,039.60/1,030,225.80 = 508,746.80/x
  3. Step 3: Cross multiply
    686,039.60x = 1,030,225.80 × 508,746.80
  4. Step 4: Simplify right side
    686,039.60x = 524,124,079,027.44
  5. Step 5: Solve for x
    x = 524,124,079,027.44/686,039.60
  6. Step 6: Final answer
    x = 763,985.17

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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.