Finding the Fourth Proportional to 884,585.12, 1,219,490.64 and 748,070.12
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Solution
The fourth proportional to 884,585.12, 1,219,490.64 and 748,070.12 is: 1,031,290.82
Step by Step Solution
- Step 1: Write the proportion equation
884,585.12 : 1,219,490.64 = 748,070.12 : x - Step 2: Convert to fraction form
884,585.12/1,219,490.64 = 748,070.12/x - Step 3: Cross multiply
884,585.12x = 1,219,490.64 × 748,070.12 - Step 4: Simplify right side
884,585.12x = 912,264,509,403.68 - Step 5: Solve for x
x = 912,264,509,403.68/884,585.12 - Step 6: Final answer
x = 1,031,290.82
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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.