Finding the Fourth Proportional to 1,248,948.42, 1,723,590.55 and 765,420.13
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Solution
The fourth proportional to 1,248,948.42, 1,723,590.55 and 765,420.13 is: 1,056,305.36
Step by Step Solution
- Step 1: Write the proportion equation
1,248,948.42 : 1,723,590.55 = 765,420.13 : x - Step 2: Convert to fraction form
1,248,948.42/1,723,590.55 = 765,420.13/x - Step 3: Cross multiply
1,248,948.42x = 1,723,590.55 × 765,420.13 - Step 4: Simplify right side
1,248,948.42x = 1,319,270,901,653.55 - Step 5: Solve for x
x = 1,319,270,901,653.55/1,248,948.42 - Step 6: Final answer
x = 1,056,305.36
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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.