Home / 790,543.72-1,185,657.90-285,090.76

Finding the Fourth Proportional to 790,543.72, 1,185,657.90 and 285,090.76

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Solution

The fourth proportional to 790,543.72, 1,185,657.90 and 285,090.76 is: 427,579.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,543.72 : 1,185,657.90 = 285,090.76 : x
  2. Step 2: Convert to fraction form
    790,543.72/1,185,657.90 = 285,090.76/x
  3. Step 3: Cross multiply
    790,543.72x = 1,185,657.90 × 285,090.76
  4. Step 4: Simplify right side
    790,543.72x = 338,020,111,811.00
  5. Step 5: Solve for x
    x = 338,020,111,811.00/790,543.72
  6. Step 6: Final answer
    x = 427,579.28

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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.