Home / 898,597.75-1,240,018.67-490,620.95

Finding the Fourth Proportional to 898,597.75, 1,240,018.67 and 490,620.95

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Solution

The fourth proportional to 898,597.75, 1,240,018.67 and 490,620.95 is: 677,031.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    898,597.75 : 1,240,018.67 = 490,620.95 : x
  2. Step 2: Convert to fraction form
    898,597.75/1,240,018.67 = 490,620.95/x
  3. Step 3: Cross multiply
    898,597.75x = 1,240,018.67 × 490,620.95
  4. Step 4: Simplify right side
    898,597.75x = 608,379,137,569.67
  5. Step 5: Solve for x
    x = 608,379,137,569.67/898,597.75
  6. Step 6: Final answer
    x = 677,031.67

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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.