Home / 1,070,075.95-1,605,766.07-430,259.72

Finding the Fourth Proportional to 1,070,075.95, 1,605,766.07 and 430,259.72

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Solution

The fourth proportional to 1,070,075.95, 1,605,766.07 and 430,259.72 is: 645,651.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,070,075.95 : 1,605,766.07 = 430,259.72 : x
  2. Step 2: Convert to fraction form
    1,070,075.95/1,605,766.07 = 430,259.72/x
  3. Step 3: Cross multiply
    1,070,075.95x = 1,605,766.07 × 430,259.72
  4. Step 4: Simplify right side
    1,070,075.95x = 690,896,452,710.52
  5. Step 5: Solve for x
    x = 690,896,452,710.52/1,070,075.95
  6. Step 6: Final answer
    x = 645,651.79

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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.