Home / 979,420.06-1,351,599.69-549,700.21

Finding the Fourth Proportional to 979,420.06, 1,351,599.69 and 549,700.21

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Solution

The fourth proportional to 979,420.06, 1,351,599.69 and 549,700.21 is: 758,586.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    979,420.06 : 1,351,599.69 = 549,700.21 : x
  2. Step 2: Convert to fraction form
    979,420.06/1,351,599.69 = 549,700.21/x
  3. Step 3: Cross multiply
    979,420.06x = 1,351,599.69 × 549,700.21
  4. Step 4: Simplify right side
    979,420.06x = 742,974,633,428.94
  5. Step 5: Solve for x
    x = 742,974,633,428.94/979,420.06
  6. Step 6: Final answer
    x = 758,586.29

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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.