Finding the Fourth Proportional to 1,587,281.86, 2,190,465.04 and 862,143.74
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Solution
The fourth proportional to 1,587,281.86, 2,190,465.04 and 862,143.74 is: 1,189,767.09
Step by Step Solution
- Step 1: Write the proportion equation
1,587,281.86 : 2,190,465.04 = 862,143.74 : x - Step 2: Convert to fraction form
1,587,281.86/2,190,465.04 = 862,143.74/x - Step 3: Cross multiply
1,587,281.86x = 2,190,465.04 × 862,143.74 - Step 4: Simplify right side
1,587,281.86x = 1,888,495,721,924.85 - Step 5: Solve for x
x = 1,888,495,721,924.85/1,587,281.86 - Step 6: Final answer
x = 1,189,767.09
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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.