Home / 760,749.98-1,049,835.05-421,218.23

Finding the Fourth Proportional to 760,749.98, 1,049,835.05 and 421,218.23

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Solution

The fourth proportional to 760,749.98, 1,049,835.05 and 421,218.23 is: 581,281.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    760,749.98 : 1,049,835.05 = 421,218.23 : x
  2. Step 2: Convert to fraction form
    760,749.98/1,049,835.05 = 421,218.23/x
  3. Step 3: Cross multiply
    760,749.98x = 1,049,835.05 × 421,218.23
  4. Step 4: Simplify right side
    760,749.98x = 442,209,665,230.60
  5. Step 5: Solve for x
    x = 442,209,665,230.60/760,749.98
  6. Step 6: Final answer
    x = 581,281.20

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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.