Home / 760,156.80-1,139,966.40-261,404.80

Finding the Fourth Proportional to 760,156.80, 1,139,966.40 and 261,404.80

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Solution

The fourth proportional to 760,156.80, 1,139,966.40 and 261,404.80 is: 392,014.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    760,156.80 : 1,139,966.40 = 261,404.80 : x
  2. Step 2: Convert to fraction form
    760,156.80/1,139,966.40 = 261,404.80/x
  3. Step 3: Cross multiply
    760,156.80x = 1,139,966.40 × 261,404.80
  4. Step 4: Simplify right side
    760,156.80x = 297,992,688,798.72
  5. Step 5: Solve for x
    x = 297,992,688,798.72/760,156.80
  6. Step 6: Final answer
    x = 392,014.76

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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.