Home / 889,931.80-1,334,768.10-258,779.80

Finding the Fourth Proportional to 889,931.80, 1,334,768.10 and 258,779.80

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Solution

The fourth proportional to 889,931.80, 1,334,768.10 and 258,779.80 is: 388,132.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    889,931.80 : 1,334,768.10 = 258,779.80 : x
  2. Step 2: Convert to fraction form
    889,931.80/1,334,768.10 = 258,779.80/x
  3. Step 3: Cross multiply
    889,931.80x = 1,334,768.10 × 258,779.80
  4. Step 4: Simplify right side
    889,931.80x = 345,411,021,964.38
  5. Step 5: Solve for x
    x = 345,411,021,964.38/889,931.80
  6. Step 6: Final answer
    x = 388,132.01

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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.