Home / 788,360.45-1,087,937.12-425,784.20

Finding the Fourth Proportional to 788,360.45, 1,087,937.12 and 425,784.20

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Solution

The fourth proportional to 788,360.45, 1,087,937.12 and 425,784.20 is: 587,582.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    788,360.45 : 1,087,937.12 = 425,784.20 : x
  2. Step 2: Convert to fraction form
    788,360.45/1,087,937.12 = 425,784.20/x
  3. Step 3: Cross multiply
    788,360.45x = 1,087,937.12 × 425,784.20
  4. Step 4: Simplify right side
    788,360.45x = 463,226,431,914.28
  5. Step 5: Solve for x
    x = 463,226,431,914.28/788,360.45
  6. Step 6: Final answer
    x = 587,582.03

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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.