Home / 1,114,313.20-1,671,479.40-315,612.40

Finding the Fourth Proportional to 1,114,313.20, 1,671,479.40 and 315,612.40

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Solution

The fourth proportional to 1,114,313.20, 1,671,479.40 and 315,612.40 is: 473,421.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,114,313.20 : 1,671,479.40 = 315,612.40 : x
  2. Step 2: Convert to fraction form
    1,114,313.20/1,671,479.40 = 315,612.40/x
  3. Step 3: Cross multiply
    1,114,313.20x = 1,671,479.40 × 315,612.40
  4. Step 4: Simplify right side
    1,114,313.20x = 527,539,624,984.56
  5. Step 5: Solve for x
    x = 527,539,624,984.56/1,114,313.20
  6. Step 6: Final answer
    x = 473,421.32

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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.