Home / 992,543.40-1,488,383.10-459,887.40

Finding the Fourth Proportional to 992,543.40, 1,488,383.10 and 459,887.40

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Solution

The fourth proportional to 992,543.40, 1,488,383.10 and 459,887.40 is: 689,630.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    992,543.40 : 1,488,383.10 = 459,887.40 : x
  2. Step 2: Convert to fraction form
    992,543.40/1,488,383.10 = 459,887.40/x
  3. Step 3: Cross multiply
    992,543.40x = 1,488,383.10 × 459,887.40
  4. Step 4: Simplify right side
    992,543.40x = 684,488,634,062.94
  5. Step 5: Solve for x
    x = 684,488,634,062.94/992,543.40
  6. Step 6: Final answer
    x = 689,630.94

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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.