Home / 885,431.04-1,221,742.30-498,192.72

Finding the Fourth Proportional to 885,431.04, 1,221,742.30 and 498,192.72

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Solution

The fourth proportional to 885,431.04, 1,221,742.30 and 498,192.72 is: 687,420.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,431.04 : 1,221,742.30 = 498,192.72 : x
  2. Step 2: Convert to fraction form
    885,431.04/1,221,742.30 = 498,192.72/x
  3. Step 3: Cross multiply
    885,431.04x = 1,221,742.30 × 498,192.72
  4. Step 4: Simplify right side
    885,431.04x = 608,663,119,576.06
  5. Step 5: Solve for x
    x = 608,663,119,576.06/885,431.04
  6. Step 6: Final answer
    x = 687,420.13

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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.