Home / 760,749.23-1,049,834.01-421,217.48

Finding the Fourth Proportional to 760,749.23, 1,049,834.01 and 421,217.48

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Solution

The fourth proportional to 760,749.23, 1,049,834.01 and 421,217.48 is: 581,280.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    760,749.23 : 1,049,834.01 = 421,217.48 : x
  2. Step 2: Convert to fraction form
    760,749.23/1,049,834.01 = 421,217.48/x
  3. Step 3: Cross multiply
    760,749.23x = 1,049,834.01 × 421,217.48
  4. Step 4: Simplify right side
    760,749.23x = 442,208,440,314.65
  5. Step 5: Solve for x
    x = 442,208,440,314.65/760,749.23
  6. Step 6: Final answer
    x = 581,280.17

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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.