Home / 1,007,813.61-1,390,681.89-620,566.98

Finding the Fourth Proportional to 1,007,813.61, 1,390,681.89 and 620,566.98

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Solution

The fourth proportional to 1,007,813.61, 1,390,681.89 and 620,566.98 is: 856,320.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,007,813.61 : 1,390,681.89 = 620,566.98 : x
  2. Step 2: Convert to fraction form
    1,007,813.61/1,390,681.89 = 620,566.98/x
  3. Step 3: Cross multiply
    1,007,813.61x = 1,390,681.89 × 620,566.98
  4. Step 4: Simplify right side
    1,007,813.61x = 863,011,260,617.99
  5. Step 5: Solve for x
    x = 863,011,260,617.99/1,007,813.61
  6. Step 6: Final answer
    x = 856,320.31

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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.