Home / 760,861.33-1,049,975.67-421,322.29

Finding the Fourth Proportional to 760,861.33, 1,049,975.67 and 421,322.29

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Solution

The fourth proportional to 760,861.33, 1,049,975.67 and 421,322.29 is: 581,417.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    760,861.33 : 1,049,975.67 = 421,322.29 : x
  2. Step 2: Convert to fraction form
    760,861.33/1,049,975.67 = 421,322.29/x
  3. Step 3: Cross multiply
    760,861.33x = 1,049,975.67 × 421,322.29
  4. Step 4: Simplify right side
    760,861.33x = 442,378,153,728.68
  5. Step 5: Solve for x
    x = 442,378,153,728.68/760,861.33
  6. Step 6: Final answer
    x = 581,417.58

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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.