Finding the Fourth Proportional to 905,671.52, 1,249,839.68 and 497,811.08
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Solution
The fourth proportional to 905,671.52, 1,249,839.68 and 497,811.08 is: 686,986.43
Step by Step Solution
- Step 1: Write the proportion equation
905,671.52 : 1,249,839.68 = 497,811.08 : x - Step 2: Convert to fraction form
905,671.52/1,249,839.68 = 497,811.08/x - Step 3: Cross multiply
905,671.52x = 1,249,839.68 × 497,811.08 - Step 4: Simplify right side
905,671.52x = 622,184,040,927.65 - Step 5: Solve for x
x = 622,184,040,927.65/905,671.52 - Step 6: Final answer
x = 686,986.43
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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.