Home / 760,835.31-1,049,984.37-421,303.56

Finding the Fourth Proportional to 760,835.31, 1,049,984.37 and 421,303.56

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Solution

The fourth proportional to 760,835.31, 1,049,984.37 and 421,303.56 is: 581,416.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    760,835.31 : 1,049,984.37 = 421,303.56 : x
  2. Step 2: Convert to fraction form
    760,835.31/1,049,984.37 = 421,303.56/x
  3. Step 3: Cross multiply
    760,835.31x = 1,049,984.37 × 421,303.56
  4. Step 4: Simplify right side
    760,835.31x = 442,362,153,025.36
  5. Step 5: Solve for x
    x = 442,362,153,025.36/760,835.31
  6. Step 6: Final answer
    x = 581,416.43

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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.