Home / 711,507.51-1,065,551.09-406,978.83

Finding the Fourth Proportional to 711,507.51, 1,065,551.09 and 406,978.83

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Solution

The fourth proportional to 711,507.51, 1,065,551.09 and 406,978.83 is: 609,490.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,507.51 : 1,065,551.09 = 406,978.83 : x
  2. Step 2: Convert to fraction form
    711,507.51/1,065,551.09 = 406,978.83/x
  3. Step 3: Cross multiply
    711,507.51x = 1,065,551.09 × 406,978.83
  4. Step 4: Simplify right side
    711,507.51x = 433,656,733,878.53
  5. Step 5: Solve for x
    x = 433,656,733,878.53/711,507.51
  6. Step 6: Final answer
    x = 609,490.03

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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.