Finding the Fourth Proportional to 581,921.84, 802,931.74 and 340,157.63
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Solution
The fourth proportional to 581,921.84, 802,931.74 and 340,157.63 is: 469,347.15
Step by Step Solution
- Step 1: Write the proportion equation
581,921.84 : 802,931.74 = 340,157.63 : x - Step 2: Convert to fraction form
581,921.84/802,931.74 = 340,157.63/x - Step 3: Cross multiply
581,921.84x = 802,931.74 × 340,157.63 - Step 4: Simplify right side
581,921.84x = 273,123,357,730.18 - Step 5: Solve for x
x = 273,123,357,730.18/581,921.84 - Step 6: Final answer
x = 469,347.15
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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.