Home / 906,490.70-1,360,783.65-486,586.70

Finding the Fourth Proportional to 906,490.70, 1,360,783.65 and 486,586.70

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Solution

The fourth proportional to 906,490.70, 1,360,783.65 and 486,586.70 is: 730,442.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    906,490.70 : 1,360,783.65 = 486,586.70 : x
  2. Step 2: Convert to fraction form
    906,490.70/1,360,783.65 = 486,586.70/x
  3. Step 3: Cross multiply
    906,490.70x = 1,360,783.65 × 486,586.70
  4. Step 4: Simplify right side
    906,490.70x = 662,139,225,667.46
  5. Step 5: Solve for x
    x = 662,139,225,667.46/906,490.70
  6. Step 6: Final answer
    x = 730,442.38

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1.5x scale

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.