Finding the Fourth Proportional to 1,017,105.12, 1,403,613.36 and 564,403.68
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Solution
The fourth proportional to 1,017,105.12, 1,403,613.36 and 564,403.68 is: 778,881.68
Step by Step Solution
- Step 1: Write the proportion equation
1,017,105.12 : 1,403,613.36 = 564,403.68 : x - Step 2: Convert to fraction form
1,017,105.12/1,403,613.36 = 564,403.68/x - Step 3: Cross multiply
1,017,105.12x = 1,403,613.36 × 564,403.68 - Step 4: Simplify right side
1,017,105.12x = 792,204,545,681.17 - Step 5: Solve for x
x = 792,204,545,681.17/1,017,105.12 - Step 6: Final answer
x = 778,881.68
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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.