Finding the Fourth Proportional to 900,145.08, 1,242,197.10 and 497,737.08
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Solution
The fourth proportional to 900,145.08, 1,242,197.10 and 497,737.08 is: 686,875.45
Step by Step Solution
- Step 1: Write the proportion equation
900,145.08 : 1,242,197.10 = 497,737.08 : x - Step 2: Convert to fraction form
900,145.08/1,242,197.10 = 497,737.08/x - Step 3: Cross multiply
900,145.08x = 1,242,197.10 × 497,737.08 - Step 4: Simplify right side
900,145.08x = 618,287,557,338.47 - Step 5: Solve for x
x = 618,287,557,338.47/900,145.08 - Step 6: Final answer
x = 686,875.45
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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.