Home / 790,416.84-1,090,777.96-427,840.58

Finding the Fourth Proportional to 790,416.84, 1,090,777.96 and 427,840.58

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Solution

The fourth proportional to 790,416.84, 1,090,777.96 and 427,840.58 is: 590,421.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,416.84 : 1,090,777.96 = 427,840.58 : x
  2. Step 2: Convert to fraction form
    790,416.84/1,090,777.96 = 427,840.58/x
  3. Step 3: Cross multiply
    790,416.84x = 1,090,777.96 × 427,840.58
  4. Step 4: Simplify right side
    790,416.84x = 466,679,075,057.62
  5. Step 5: Solve for x
    x = 466,679,075,057.62/790,416.84
  6. Step 6: Final answer
    x = 590,421.47

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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.