Home / 749,865.60-1,124,798.40-692,128.80

Finding the Fourth Proportional to 749,865.60, 1,124,798.40 and 692,128.80

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Solution

The fourth proportional to 749,865.60, 1,124,798.40 and 692,128.80 is: 1,038,193.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    749,865.60 : 1,124,798.40 = 692,128.80 : x
  2. Step 2: Convert to fraction form
    749,865.60/1,124,798.40 = 692,128.80/x
  3. Step 3: Cross multiply
    749,865.60x = 1,124,798.40 × 692,128.80
  4. Step 4: Simplify right side
    749,865.60x = 778,505,366,833.92
  5. Step 5: Solve for x
    x = 778,505,366,833.92/749,865.60
  6. Step 6: Final answer
    x = 1,038,193.20

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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.