Home / 708,021.83-977,067.20-385,730.93

Finding the Fourth Proportional to 708,021.83, 977,067.20 and 385,730.93

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Solution

The fourth proportional to 708,021.83, 977,067.20 and 385,730.93 is: 532,307.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    708,021.83 : 977,067.20 = 385,730.93 : x
  2. Step 2: Convert to fraction form
    708,021.83/977,067.20 = 385,730.93/x
  3. Step 3: Cross multiply
    708,021.83x = 977,067.20 × 385,730.93
  4. Step 4: Simplify right side
    708,021.83x = 376,885,032,914.51
  5. Step 5: Solve for x
    x = 376,885,032,914.51/708,021.83
  6. Step 6: Final answer
    x = 532,307.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.