Home / 898,437.72-1,239,808.63-490,556.76

Finding the Fourth Proportional to 898,437.72, 1,239,808.63 and 490,556.76

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Solution

The fourth proportional to 898,437.72, 1,239,808.63 and 490,556.76 is: 676,948.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    898,437.72 : 1,239,808.63 = 490,556.76 : x
  2. Step 2: Convert to fraction form
    898,437.72/1,239,808.63 = 490,556.76/x
  3. Step 3: Cross multiply
    898,437.72x = 1,239,808.63 × 490,556.76
  4. Step 4: Simplify right side
    898,437.72x = 608,196,499,596.96
  5. Step 5: Solve for x
    x = 608,196,499,596.96/898,437.72
  6. Step 6: Final answer
    x = 676,948.98

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Double scale
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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.