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Finding the Fourth Proportional to 424,675, 586,075.75 and 243,417.13

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Solution

The fourth proportional to 424,675, 586,075.75 and 243,417.13 is: 335,929.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,675 : 586,075.75 = 243,417.13 : x
  2. Step 2: Convert to fraction form
    424,675/586,075.75 = 243,417.13/x
  3. Step 3: Cross multiply
    424,675x = 586,075.75 × 243,417.13
  4. Step 4: Simplify right side
    424,675x = 142,660,877,027.60
  5. Step 5: Solve for x
    x = 142,660,877,027.60/424,675
  6. Step 6: Final answer
    x = 335,929.54

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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.