Finding the Fourth Proportional to 875,106.90, 1,312,660.35 and 519,938.10
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Solution
The fourth proportional to 875,106.90, 1,312,660.35 and 519,938.10 is: 779,907.15
Step by Step Solution
- Step 1: Write the proportion equation
875,106.90 : 1,312,660.35 = 519,938.10 : x - Step 2: Convert to fraction form
875,106.90/1,312,660.35 = 519,938.10/x - Step 3: Cross multiply
875,106.90x = 1,312,660.35 × 519,938.10 - Step 4: Simplify right side
875,106.90x = 682,502,128,324.34 - Step 5: Solve for x
x = 682,502,128,324.34/875,106.90 - Step 6: Final answer
x = 779,907.15
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.