Home / 760,703.91-1,049,804.20-421,172.16

Finding the Fourth Proportional to 760,703.91, 1,049,804.20 and 421,172.16

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Solution

The fourth proportional to 760,703.91, 1,049,804.20 and 421,172.16 is: 581,235.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    760,703.91 : 1,049,804.20 = 421,172.16 : x
  2. Step 2: Convert to fraction form
    760,703.91/1,049,804.20 = 421,172.16/x
  3. Step 3: Cross multiply
    760,703.91x = 1,049,804.20 × 421,172.16
  4. Step 4: Simplify right side
    760,703.91x = 442,148,296,711.68
  5. Step 5: Solve for x
    x = 442,148,296,711.68/760,703.91
  6. Step 6: Final answer
    x = 581,235.74

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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.