Finding the Fourth Proportional to 905,602.35, 1,358,403.53 and 485,698.35
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Solution
The fourth proportional to 905,602.35, 1,358,403.53 and 485,698.35 is: 728,547.53
Step by Step Solution
- Step 1: Write the proportion equation
905,602.35 : 1,358,403.53 = 485,698.35 : x - Step 2: Convert to fraction form
905,602.35/1,358,403.53 = 485,698.35/x - Step 3: Cross multiply
905,602.35x = 1,358,403.53 × 485,698.35 - Step 4: Simplify right side
905,602.35x = 659,774,350,726.68 - Step 5: Solve for x
x = 659,774,350,726.68/905,602.35 - Step 6: Final answer
x = 728,547.53
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.