Finding the Fourth Proportional to 739,599,298.65, 1,020,679,115.40 and 409,574,437.65
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Solution
The fourth proportional to 739,599,298.65, 1,020,679,115.40 and 409,574,437.65 is: 565,230,490.99
Step by Step Solution
- Step 1: Write the proportion equation
739,599,298.65 : 1,020,679,115.40 = 409,574,437.65 : x - Step 2: Convert to fraction form
739,599,298.65/1,020,679,115.40 = 409,574,437.65/x - Step 3: Cross multiply
739,599,298.65x = 1,020,679,115.40 × 409,574,437.65 - Step 4: Simplify right side
739,599,298.65x = 418,044,074,711,054,400 - Step 5: Solve for x
x = 418,044,074,711,054,400/739,599,298.65 - Step 6: Final answer
x = 565,230,490.99
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Double scale
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1.5x scale
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.