Home / 912,941.40-1,369,412.10-771,223.80

Finding the Fourth Proportional to 912,941.40, 1,369,412.10 and 771,223.80

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Solution

The fourth proportional to 912,941.40, 1,369,412.10 and 771,223.80 is: 1,156,835.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    912,941.40 : 1,369,412.10 = 771,223.80 : x
  2. Step 2: Convert to fraction form
    912,941.40/1,369,412.10 = 771,223.80/x
  3. Step 3: Cross multiply
    912,941.40x = 1,369,412.10 × 771,223.80
  4. Step 4: Simplify right side
    912,941.40x = 1,056,123,203,527.98
  5. Step 5: Solve for x
    x = 1,056,123,203,527.98/912,941.40
  6. Step 6: Final answer
    x = 1,156,835.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.