Home / 779,302.72-1,075,427.22-435,143.98

Finding the Fourth Proportional to 779,302.72, 1,075,427.22 and 435,143.98

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Solution

The fourth proportional to 779,302.72, 1,075,427.22 and 435,143.98 is: 600,492.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    779,302.72 : 1,075,427.22 = 435,143.98 : x
  2. Step 2: Convert to fraction form
    779,302.72/1,075,427.22 = 435,143.98/x
  3. Step 3: Cross multiply
    779,302.72x = 1,075,427.22 × 435,143.98
  4. Step 4: Simplify right side
    779,302.72x = 467,965,680,711.14
  5. Step 5: Solve for x
    x = 467,965,680,711.14/779,302.72
  6. Step 6: Final answer
    x = 600,492.81

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Double scale
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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.