Home / 760,700.48-1,049,825.92-421,200.32

Finding the Fourth Proportional to 760,700.48, 1,049,825.92 and 421,200.32

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Solution

The fourth proportional to 760,700.48, 1,049,825.92 and 421,200.32 is: 581,289.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    760,700.48 : 1,049,825.92 = 421,200.32 : x
  2. Step 2: Convert to fraction form
    760,700.48/1,049,825.92 = 421,200.32/x
  3. Step 3: Cross multiply
    760,700.48x = 1,049,825.92 × 421,200.32
  4. Step 4: Simplify right side
    760,700.48x = 442,187,013,448.29
  5. Step 5: Solve for x
    x = 442,187,013,448.29/760,700.48
  6. Step 6: Final answer
    x = 581,289.25

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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.