Home / 898,463.98-1,239,870.87-490,564.55

Finding the Fourth Proportional to 898,463.98, 1,239,870.87 and 490,564.55

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Solution

The fourth proportional to 898,463.98, 1,239,870.87 and 490,564.55 is: 676,973.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    898,463.98 : 1,239,870.87 = 490,564.55 : x
  2. Step 2: Convert to fraction form
    898,463.98/1,239,870.87 = 490,564.55/x
  3. Step 3: Cross multiply
    898,463.98x = 1,239,870.87 × 490,564.55
  4. Step 4: Simplify right side
    898,463.98x = 608,236,695,399.66
  5. Step 5: Solve for x
    x = 608,236,695,399.66/898,463.98
  6. Step 6: Final answer
    x = 676,973.93

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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.