Home / 920,549.76-1,270,348.43-512,642.67

Finding the Fourth Proportional to 920,549.76, 1,270,348.43 and 512,642.67

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Solution

The fourth proportional to 920,549.76, 1,270,348.43 and 512,642.67 is: 707,441.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    920,549.76 : 1,270,348.43 = 512,642.67 : x
  2. Step 2: Convert to fraction form
    920,549.76/1,270,348.43 = 512,642.67/x
  3. Step 3: Cross multiply
    920,549.76x = 1,270,348.43 × 512,642.67
  4. Step 4: Simplify right side
    920,549.76x = 651,234,808,422.30
  5. Step 5: Solve for x
    x = 651,234,808,422.30/920,549.76
  6. Step 6: Final answer
    x = 707,441.18

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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.