Finding the Fourth Proportional to 1,506,130.21, 2,078,402.93 and 817,787.18
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Solution
The fourth proportional to 1,506,130.21, 2,078,402.93 and 817,787.18 is: 1,128,515.49
Step by Step Solution
- Step 1: Write the proportion equation
1,506,130.21 : 2,078,402.93 = 817,787.18 : x - Step 2: Convert to fraction form
1,506,130.21/2,078,402.93 = 817,787.18/x - Step 3: Cross multiply
1,506,130.21x = 2,078,402.93 × 817,787.18 - Step 4: Simplify right side
1,506,130.21x = 1,699,691,266,939.50 - Step 5: Solve for x
x = 1,699,691,266,939.50/1,506,130.21 - Step 6: Final answer
x = 1,128,515.49
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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.