Home / 779,982.88-1,076,368.08-440,430.88

Finding the Fourth Proportional to 779,982.88, 1,076,368.08 and 440,430.88

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Solution

The fourth proportional to 779,982.88, 1,076,368.08 and 440,430.88 is: 607,789.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    779,982.88 : 1,076,368.08 = 440,430.88 : x
  2. Step 2: Convert to fraction form
    779,982.88/1,076,368.08 = 440,430.88/x
  3. Step 3: Cross multiply
    779,982.88x = 1,076,368.08 × 440,430.88
  4. Step 4: Simplify right side
    779,982.88x = 474,065,740,678.31
  5. Step 5: Solve for x
    x = 474,065,740,678.31/779,982.88
  6. Step 6: Final answer
    x = 607,789.93

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1.5x scale

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.