Home / 715,425.80-1,075,212.30-624,187.40

Finding the Fourth Proportional to 715,425.80, 1,075,212.30 and 624,187.40

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Solution

The fourth proportional to 715,425.80, 1,075,212.30 and 624,187.40 is: 938,090.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    715,425.80 : 1,075,212.30 = 624,187.40 : x
  2. Step 2: Convert to fraction form
    715,425.80/1,075,212.30 = 624,187.40/x
  3. Step 3: Cross multiply
    715,425.80x = 1,075,212.30 × 624,187.40
  4. Step 4: Simplify right side
    715,425.80x = 671,133,969,985.02
  5. Step 5: Solve for x
    x = 671,133,969,985.02/715,425.80
  6. Step 6: Final answer
    x = 938,090.25

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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.