Home / 918,426.34-1,267,320.09-545,831.26

Finding the Fourth Proportional to 918,426.34, 1,267,320.09 and 545,831.26

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Solution

The fourth proportional to 918,426.34, 1,267,320.09 and 545,831.26 is: 753,182.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,426.34 : 1,267,320.09 = 545,831.26 : x
  2. Step 2: Convert to fraction form
    918,426.34/1,267,320.09 = 545,831.26/x
  3. Step 3: Cross multiply
    918,426.34x = 1,267,320.09 × 545,831.26
  4. Step 4: Simplify right side
    918,426.34x = 691,742,921,548.01
  5. Step 5: Solve for x
    x = 691,742,921,548.01/918,426.34
  6. Step 6: Final answer
    x = 753,182.80

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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.