Home / 790,075.89-1,090,301.72-427,500.45

Finding the Fourth Proportional to 790,075.89, 1,090,301.72 and 427,500.45

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Solution

The fourth proportional to 790,075.89, 1,090,301.72 and 427,500.45 is: 589,948.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,075.89 : 1,090,301.72 = 427,500.45 : x
  2. Step 2: Convert to fraction form
    790,075.89/1,090,301.72 = 427,500.45/x
  3. Step 3: Cross multiply
    790,075.89x = 1,090,301.72 × 427,500.45
  4. Step 4: Simplify right side
    790,075.89x = 466,104,473,798.27
  5. Step 5: Solve for x
    x = 466,104,473,798.27/790,075.89
  6. Step 6: Final answer
    x = 589,948.99

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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.