Home / 898,779.48-1,240,309.26-490,881.30

Finding the Fourth Proportional to 898,779.48, 1,240,309.26 and 490,881.30

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Solution

The fourth proportional to 898,779.48, 1,240,309.26 and 490,881.30 is: 677,412.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    898,779.48 : 1,240,309.26 = 490,881.30 : x
  2. Step 2: Convert to fraction form
    898,779.48/1,240,309.26 = 490,881.30/x
  3. Step 3: Cross multiply
    898,779.48x = 1,240,309.26 × 490,881.30
  4. Step 4: Simplify right side
    898,779.48x = 608,844,621,950.84
  5. Step 5: Solve for x
    x = 608,844,621,950.84/898,779.48
  6. Step 6: Final answer
    x = 677,412.69

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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.