Finding the Fourth Proportional to 643,875.08, 888,507.06 and 357,378.44
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Solution
The fourth proportional to 643,875.08, 888,507.06 and 357,378.44 is: 493,159.74
Step by Step Solution
- Step 1: Write the proportion equation
643,875.08 : 888,507.06 = 357,378.44 : x - Step 2: Convert to fraction form
643,875.08/888,507.06 = 357,378.44/x - Step 3: Cross multiply
643,875.08x = 888,507.06 × 357,378.44 - Step 4: Simplify right side
643,875.08x = 317,533,267,031.79 - Step 5: Solve for x
x = 317,533,267,031.79/643,875.08 - Step 6: Final answer
x = 493,159.74
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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.