Home / 885,312.25-1,221,730.91-482,904.25

Finding the Fourth Proportional to 885,312.25, 1,221,730.91 and 482,904.25

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Solution

The fourth proportional to 885,312.25, 1,221,730.91 and 482,904.25 is: 666,407.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,312.25 : 1,221,730.91 = 482,904.25 : x
  2. Step 2: Convert to fraction form
    885,312.25/1,221,730.91 = 482,904.25/x
  3. Step 3: Cross multiply
    885,312.25x = 1,221,730.91 × 482,904.25
  4. Step 4: Simplify right side
    885,312.25x = 589,979,048,795.37
  5. Step 5: Solve for x
    x = 589,979,048,795.37/885,312.25
  6. Step 6: Final answer
    x = 666,407.87

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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.