Home / 898,463.72-1,239,870.53-490,564.31

Finding the Fourth Proportional to 898,463.72, 1,239,870.53 and 490,564.31

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Solution

The fourth proportional to 898,463.72, 1,239,870.53 and 490,564.31 is: 676,973.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    898,463.72 : 1,239,870.53 = 490,564.31 : x
  2. Step 2: Convert to fraction form
    898,463.72/1,239,870.53 = 490,564.31/x
  3. Step 3: Cross multiply
    898,463.72x = 1,239,870.53 × 490,564.31
  4. Step 4: Simplify right side
    898,463.72x = 608,236,226,065.84
  5. Step 5: Solve for x
    x = 608,236,226,065.84/898,463.72
  6. Step 6: Final answer
    x = 676,973.61

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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.