Home / 992,303.80-1,488,455.70-519,134.20

Finding the Fourth Proportional to 992,303.80, 1,488,455.70 and 519,134.20

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Solution

The fourth proportional to 992,303.80, 1,488,455.70 and 519,134.20 is: 778,701.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    992,303.80 : 1,488,455.70 = 519,134.20 : x
  2. Step 2: Convert to fraction form
    992,303.80/1,488,455.70 = 519,134.20/x
  3. Step 3: Cross multiply
    992,303.80x = 1,488,455.70 × 519,134.20
  4. Step 4: Simplify right side
    992,303.80x = 772,708,259,054.94
  5. Step 5: Solve for x
    x = 772,708,259,054.94/992,303.80
  6. Step 6: Final answer
    x = 778,701.30

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Similar ratio
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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.