Home / 779,678.67-1,075,965.53-457,394.25

Finding the Fourth Proportional to 779,678.67, 1,075,965.53 and 457,394.25

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Solution

The fourth proportional to 779,678.67, 1,075,965.53 and 457,394.25 is: 631,209.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    779,678.67 : 1,075,965.53 = 457,394.25 : x
  2. Step 2: Convert to fraction form
    779,678.67/1,075,965.53 = 457,394.25/x
  3. Step 3: Cross multiply
    779,678.67x = 1,075,965.53 × 457,394.25
  4. Step 4: Simplify right side
    779,678.67x = 492,140,446,620.20
  5. Step 5: Solve for x
    x = 492,140,446,620.20/779,678.67
  6. Step 6: Final answer
    x = 631,209.32

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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.