Finding the Fourth Proportional to 665,318.95, 918,547.02 and 432,967.28
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Solution
The fourth proportional to 665,318.95, 918,547.02 and 432,967.28 is: 597,759.63
Step by Step Solution
- Step 1: Write the proportion equation
665,318.95 : 918,547.02 = 432,967.28 : x - Step 2: Convert to fraction form
665,318.95/918,547.02 = 432,967.28/x - Step 3: Cross multiply
665,318.95x = 918,547.02 × 432,967.28 - Step 4: Simplify right side
665,318.95x = 397,700,804,801.51 - Step 5: Solve for x
x = 397,700,804,801.51/665,318.95 - Step 6: Final answer
x = 597,759.63
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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.