Home / 939,521.51-1,409,281.56-539,907.40

Finding the Fourth Proportional to 939,521.51, 1,409,281.56 and 539,907.40

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Solution

The fourth proportional to 939,521.51, 1,409,281.56 and 539,907.40 is: 809,860.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    939,521.51 : 1,409,281.56 = 539,907.40 : x
  2. Step 2: Convert to fraction form
    939,521.51/1,409,281.56 = 539,907.40/x
  3. Step 3: Cross multiply
    939,521.51x = 1,409,281.56 × 539,907.40
  4. Step 4: Simplify right side
    939,521.51x = 760,881,535,881.14
  5. Step 5: Solve for x
    x = 760,881,535,881.14/939,521.51
  6. Step 6: Final answer
    x = 809,860.69

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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.