Home / 991,920.48-1,487,880.96-459,150.24

Finding the Fourth Proportional to 991,920.48, 1,487,880.96 and 459,150.24

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Solution

The fourth proportional to 991,920.48, 1,487,880.96 and 459,150.24 is: 688,725.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    991,920.48 : 1,487,880.96 = 459,150.24 : x
  2. Step 2: Convert to fraction form
    991,920.48/1,487,880.96 = 459,150.24/x
  3. Step 3: Cross multiply
    991,920.48x = 1,487,880.96 × 459,150.24
  4. Step 4: Simplify right side
    991,920.48x = 683,160,899,875.43
  5. Step 5: Solve for x
    x = 683,160,899,875.43/991,920.48
  6. Step 6: Final answer
    x = 688,725.47

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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.