Home / 990,426.95-1,485,207.80-350,518.01

Finding the Fourth Proportional to 990,426.95, 1,485,207.80 and 350,518.01

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Solution

The fourth proportional to 990,426.95, 1,485,207.80 and 350,518.01 is: 525,623.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,426.95 : 1,485,207.80 = 350,518.01 : x
  2. Step 2: Convert to fraction form
    990,426.95/1,485,207.80 = 350,518.01/x
  3. Step 3: Cross multiply
    990,426.95x = 1,485,207.80 × 350,518.01
  4. Step 4: Simplify right side
    990,426.95x = 520,592,080,469.00
  5. Step 5: Solve for x
    x = 520,592,080,469.00/990,426.95
  6. Step 6: Final answer
    x = 525,623.91

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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.