Finding the Fourth Proportional to 879,572.80, 1,213,681.32 and 492,368.08
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Solution
The fourth proportional to 879,572.80, 1,213,681.32 and 492,368.08 is: 679,395.66
Step by Step Solution
- Step 1: Write the proportion equation
879,572.80 : 1,213,681.32 = 492,368.08 : x - Step 2: Convert to fraction form
879,572.80/1,213,681.32 = 492,368.08/x - Step 3: Cross multiply
879,572.80x = 1,213,681.32 × 492,368.08 - Step 4: Simplify right side
879,572.80x = 597,577,941,260.27 - Step 5: Solve for x
x = 597,577,941,260.27/879,572.80 - Step 6: Final answer
x = 679,395.66
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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.