Home / 760,832.09-1,049,979.93-421,300.34

Finding the Fourth Proportional to 760,832.09, 1,049,979.93 and 421,300.34

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Solution

The fourth proportional to 760,832.09, 1,049,979.93 and 421,300.34 is: 581,411.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    760,832.09 : 1,049,979.93 = 421,300.34 : x
  2. Step 2: Convert to fraction form
    760,832.09/1,049,979.93 = 421,300.34/x
  3. Step 3: Cross multiply
    760,832.09x = 1,049,979.93 × 421,300.34
  4. Step 4: Simplify right side
    760,832.09x = 442,356,901,502.18
  5. Step 5: Solve for x
    x = 442,356,901,502.18/760,832.09
  6. Step 6: Final answer
    x = 581,411.99

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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.