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Finding the Fourth Proportional to 631,210.34, 871,075.84 and 359,295.74

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Solution

The fourth proportional to 631,210.34, 871,075.84 and 359,295.74 is: 495,831.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,210.34 : 871,075.84 = 359,295.74 : x
  2. Step 2: Convert to fraction form
    631,210.34/871,075.84 = 359,295.74/x
  3. Step 3: Cross multiply
    631,210.34x = 871,075.84 × 359,295.74
  4. Step 4: Simplify right side
    631,210.34x = 312,973,839,665.42
  5. Step 5: Solve for x
    x = 312,973,839,665.42/631,210.34
  6. Step 6: Final answer
    x = 495,831.29

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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.