Finding the Fourth Proportional to 905,409.77, 1,249,465.08 and 497,537.91
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Solution
The fourth proportional to 905,409.77, 1,249,465.08 and 497,537.91 is: 686,602.10
Step by Step Solution
- Step 1: Write the proportion equation
905,409.77 : 1,249,465.08 = 497,537.91 : x - Step 2: Convert to fraction form
905,409.77/1,249,465.08 = 497,537.91/x - Step 3: Cross multiply
905,409.77x = 1,249,465.08 × 497,537.91 - Step 4: Simplify right side
905,409.77x = 621,656,244,521.18 - Step 5: Solve for x
x = 621,656,244,521.18/905,409.77 - Step 6: Final answer
x = 686,602.10
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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.