Home / 757,492.18-1,045,338.61-485,559.88

Finding the Fourth Proportional to 757,492.18, 1,045,338.61 and 485,559.88

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Solution

The fourth proportional to 757,492.18, 1,045,338.61 and 485,559.88 is: 670,072.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    757,492.18 : 1,045,338.61 = 485,559.88 : x
  2. Step 2: Convert to fraction form
    757,492.18/1,045,338.61 = 485,559.88/x
  3. Step 3: Cross multiply
    757,492.18x = 1,045,338.61 × 485,559.88
  4. Step 4: Simplify right side
    757,492.18x = 507,574,490,030.97
  5. Step 5: Solve for x
    x = 507,574,490,030.97/757,492.18
  6. Step 6: Final answer
    x = 670,072.25

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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.